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Dual boot Ubuntu 16.04 with preinstalled Windows 10 Dell G5 5587


Ubuntu 14.10 dual boot with preinstalled Windows 8Dual-boot Ubuntu 14.04 - Win8.1 (Can't boot Windows when UEFI mode is turned on)windows 10 dual boot with UbuntuUbuntu boot mode conflict when installing to new (empty) SSD






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margin-bottom:0;









0

















I am trying to install+dual boot Ubuntu 16.04(LTS) with pre installed Windows 10(home) in my Dell G5 5587. Windows is installed in SSD. I have 1TB HDD alongside the SSD.



I did the following:



  • Freed 100 GB from SSD and created 100 GB unallocated space.

  • Turned off Windows 10 Fast boot.

  • Turned off Secure boot feature from BIOS.

  • Changed Secure boot mode to audit mode in BIOS.

msinfo32 is showing:



BIOS Mode UEFI
Secure Boot State Off


The BIOS is showing UEFI on, Secure Boot off, PTT on.



Approach 1 (MBR+UEFI/Legacy)



I burned Ubuntu using Rufus(MBR+UEFI/Legacy) to a pendrive. I got the pendrive in the one time boot menu(F12). When I try to install Ubuntu it showed the following warning:




"This machine's firmware has started the installer in UEFI mode but it
looks like there may be existing operating systems already installed
using "BIOS compatibility mode". If you continue to install Debian in
UEFI mode, it might be difficult to reboot the machine into any
BIOS-mode operating systems later.



If you wish to install in UEFI mode and don't care about keeping the
ability to boot one of the existing systems, you have the option to
force that here. If you wish to keep the option to boot an existing
operating system, you should choose NOT to force UEFI installation
here.")




Force UEFI installation



As I do not want to risk losing Windows, I aborted installing Ubuntu.



Approach 2 (GPT+UEFI)



If I burn the Ubuntu OS using Rufus(GPT+UEFI), I do not find the pendrive in one time boot menu(F12).



Question



How to properly install dual boot Ubuntu 16.04 LTS with pre installed Windows 10 in Dell G5 5587?










share|improve this question


































    0

















    I am trying to install+dual boot Ubuntu 16.04(LTS) with pre installed Windows 10(home) in my Dell G5 5587. Windows is installed in SSD. I have 1TB HDD alongside the SSD.



    I did the following:



    • Freed 100 GB from SSD and created 100 GB unallocated space.

    • Turned off Windows 10 Fast boot.

    • Turned off Secure boot feature from BIOS.

    • Changed Secure boot mode to audit mode in BIOS.

    msinfo32 is showing:



    BIOS Mode UEFI
    Secure Boot State Off


    The BIOS is showing UEFI on, Secure Boot off, PTT on.



    Approach 1 (MBR+UEFI/Legacy)



    I burned Ubuntu using Rufus(MBR+UEFI/Legacy) to a pendrive. I got the pendrive in the one time boot menu(F12). When I try to install Ubuntu it showed the following warning:




    "This machine's firmware has started the installer in UEFI mode but it
    looks like there may be existing operating systems already installed
    using "BIOS compatibility mode". If you continue to install Debian in
    UEFI mode, it might be difficult to reboot the machine into any
    BIOS-mode operating systems later.



    If you wish to install in UEFI mode and don't care about keeping the
    ability to boot one of the existing systems, you have the option to
    force that here. If you wish to keep the option to boot an existing
    operating system, you should choose NOT to force UEFI installation
    here.")




    Force UEFI installation



    As I do not want to risk losing Windows, I aborted installing Ubuntu.



    Approach 2 (GPT+UEFI)



    If I burn the Ubuntu OS using Rufus(GPT+UEFI), I do not find the pendrive in one time boot menu(F12).



    Question



    How to properly install dual boot Ubuntu 16.04 LTS with pre installed Windows 10 in Dell G5 5587?










    share|improve this question






























      0












      0








      0








      I am trying to install+dual boot Ubuntu 16.04(LTS) with pre installed Windows 10(home) in my Dell G5 5587. Windows is installed in SSD. I have 1TB HDD alongside the SSD.



      I did the following:



      • Freed 100 GB from SSD and created 100 GB unallocated space.

      • Turned off Windows 10 Fast boot.

      • Turned off Secure boot feature from BIOS.

      • Changed Secure boot mode to audit mode in BIOS.

      msinfo32 is showing:



      BIOS Mode UEFI
      Secure Boot State Off


      The BIOS is showing UEFI on, Secure Boot off, PTT on.



      Approach 1 (MBR+UEFI/Legacy)



      I burned Ubuntu using Rufus(MBR+UEFI/Legacy) to a pendrive. I got the pendrive in the one time boot menu(F12). When I try to install Ubuntu it showed the following warning:




      "This machine's firmware has started the installer in UEFI mode but it
      looks like there may be existing operating systems already installed
      using "BIOS compatibility mode". If you continue to install Debian in
      UEFI mode, it might be difficult to reboot the machine into any
      BIOS-mode operating systems later.



      If you wish to install in UEFI mode and don't care about keeping the
      ability to boot one of the existing systems, you have the option to
      force that here. If you wish to keep the option to boot an existing
      operating system, you should choose NOT to force UEFI installation
      here.")




      Force UEFI installation



      As I do not want to risk losing Windows, I aborted installing Ubuntu.



      Approach 2 (GPT+UEFI)



      If I burn the Ubuntu OS using Rufus(GPT+UEFI), I do not find the pendrive in one time boot menu(F12).



      Question



      How to properly install dual boot Ubuntu 16.04 LTS with pre installed Windows 10 in Dell G5 5587?










      share|improve this question

















      I am trying to install+dual boot Ubuntu 16.04(LTS) with pre installed Windows 10(home) in my Dell G5 5587. Windows is installed in SSD. I have 1TB HDD alongside the SSD.



      I did the following:



      • Freed 100 GB from SSD and created 100 GB unallocated space.

      • Turned off Windows 10 Fast boot.

      • Turned off Secure boot feature from BIOS.

      • Changed Secure boot mode to audit mode in BIOS.

      msinfo32 is showing:



      BIOS Mode UEFI
      Secure Boot State Off


      The BIOS is showing UEFI on, Secure Boot off, PTT on.



      Approach 1 (MBR+UEFI/Legacy)



      I burned Ubuntu using Rufus(MBR+UEFI/Legacy) to a pendrive. I got the pendrive in the one time boot menu(F12). When I try to install Ubuntu it showed the following warning:




      "This machine's firmware has started the installer in UEFI mode but it
      looks like there may be existing operating systems already installed
      using "BIOS compatibility mode". If you continue to install Debian in
      UEFI mode, it might be difficult to reboot the machine into any
      BIOS-mode operating systems later.



      If you wish to install in UEFI mode and don't care about keeping the
      ability to boot one of the existing systems, you have the option to
      force that here. If you wish to keep the option to boot an existing
      operating system, you should choose NOT to force UEFI installation
      here.")




      Force UEFI installation



      As I do not want to risk losing Windows, I aborted installing Ubuntu.



      Approach 2 (GPT+UEFI)



      If I burn the Ubuntu OS using Rufus(GPT+UEFI), I do not find the pendrive in one time boot menu(F12).



      Question



      How to properly install dual boot Ubuntu 16.04 LTS with pre installed Windows 10 in Dell G5 5587?







      16.04 dual-boot uefi dell windows-10






      share|improve this question
















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jun 15 at 7:03







      arsho

















      asked Jun 15 at 3:51









      arshoarsho

      1015 bronze badges




      1015 bronze badges























          1 Answer
          1






          active

          oldest

          votes


















          0


















          Steps to install Ubuntu 18.04 alongside pre installed Windows 10 as dual boot in NVMe SSD.



          Hardware Information:



          • Dell G5 5587

          • Core i7 8750H

          • RAM 16 GB

          • NVMe SSD (Toshiba) 256 GB

          • HDD 1 TB

          • NVIDIA® GeForce® GTX 1060 6GB GDDR5 with Max-Q Design

          Download Files



          • Download Ubuntu iso file from Ubuntu website.

          • Download Rufus from Rufus website.

          Burn the ISO to a Pendrive



          • Insert a USB pendrive.

          • Backup the pendrive data if necessary.

          • Open Rufus.

          • Select Partition Scheme MBR.

          • Keep the other settings to default. E.g.: FAT.

          • Select the ISO and burn it to the connected pendrive.

          Create Unallocated Space for Ubuntu



          • Open disk management in Windows.

          • Shrink the volume where Windows is installed (NVMe SSD). The size depends on yourself. I have created 100 GB of unallocated space.

          Turn off Fast startup from Windows 10



          • Dual boot does not work when Fast startup option is enabled in Windows 10.

          • Right-click the Start button.

          • Click Search.

          • Type Control Panel and hit Enter on your keyboard.

          • Click Power Options.

          • Click Choose what the power buttons do.

          • Click Change settings that are currently unavailable.

          • Uncheck Turn on fast startup (recommended).

          • Click Save changes.

          Turn off secure boot from BIOS



          • Tap F2 key at the Dell logo screen to enter System Setup or BIOS.

          • On the left pane, click Boot Sequence.

          • Check that Secure Boot is set to Disabled. Within the BIOS go to Secure Boot > Secure Boot Enable, and set the checkbox to Disabled.

          • Change the Secure Boot Mode to audit mode.

          • Save settings and the machine will be restarted.

          Enable AHCI for dual boot



          • With a preinstalled Windows SATA mode set to IDE or RAID in BIOS.

          • To install dual boot we need to change SATA mode to AHCI from BIOS.

          • Create the Windows 10 local account:

            • Go to Settings > Accounts.

            • Select Family & other users.

            • Tap Add someone else to this PC.

            • Select I don't have this person's sign-in information.

            • Select Add a user without a Microsoft account.

            • Enter a username, type the account's password twice, enter a clue and select Next.

            • Change the Account type of this newly created account to Administrator.

            • Login using this new user account.


          • Right-click the Windows Start Menu. Choose Command Prompt (Admin).

          • Type this command and press ENTER: bcdedit /set current safeboot minimal

          • Restart the computer and enter BIOS Setup. On Dell Inspiron it is F2.

          • Change the SATA Operation mode to AHCI from either IDE or RAID.

          • Save changes and exit Setup and Windows will automatically boot to Safe Mode.

          • Right-click the Windows Start Menu once more. Choose Command Prompt (Admin).

          • Type this command and press ENTER: bcdedit /deletevalue current safeboot

          • Reboot once more and Windows will automatically start with AHCI drivers enabled.

          Install Ubuntu



          • After the OS burn, insert the pendrive and restart the machine.

          • Press F12 or F10 depending your machine.

          • Select USB/Removable media.

          • Select install Ubuntu.

          • Select Language and other options.

          • When it comes to partition option, select something else.

          • In the unallocated space:

            • Give 2 GB Logical space to swap memory. The swap size depends on your RAM size.

            • Give remaining Primary space to / partition


          • Select Windows Boot Manager as Device for boot loader installation.

          • Continue with the remaining process.

          Install Drivers (optional)



          • After successful installation of Ubuntu, update the system softwares.

          • To update the drivers:

          sudo apt-get update
          sudo apt-get upgrade
          sudo apt-get dist-upgrade
          ubuntu-drivers devices
          sudo ubuntu-drivers autoinstall


          • You may now access both Windows and Ubuntu in a dual boot manner.

          Reference:



          • Turn off fast startup Windows 10

          • Dual boot in NVMe SSD Dell

          • Turn off secure boot from Dell BIOS

          • Create local account in Windows 10

          • Dell documentation on creating dual boot





          share|improve this answer





























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            1 Answer
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            active

            oldest

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            active

            oldest

            votes









            0


















            Steps to install Ubuntu 18.04 alongside pre installed Windows 10 as dual boot in NVMe SSD.



            Hardware Information:



            • Dell G5 5587

            • Core i7 8750H

            • RAM 16 GB

            • NVMe SSD (Toshiba) 256 GB

            • HDD 1 TB

            • NVIDIA® GeForce® GTX 1060 6GB GDDR5 with Max-Q Design

            Download Files



            • Download Ubuntu iso file from Ubuntu website.

            • Download Rufus from Rufus website.

            Burn the ISO to a Pendrive



            • Insert a USB pendrive.

            • Backup the pendrive data if necessary.

            • Open Rufus.

            • Select Partition Scheme MBR.

            • Keep the other settings to default. E.g.: FAT.

            • Select the ISO and burn it to the connected pendrive.

            Create Unallocated Space for Ubuntu



            • Open disk management in Windows.

            • Shrink the volume where Windows is installed (NVMe SSD). The size depends on yourself. I have created 100 GB of unallocated space.

            Turn off Fast startup from Windows 10



            • Dual boot does not work when Fast startup option is enabled in Windows 10.

            • Right-click the Start button.

            • Click Search.

            • Type Control Panel and hit Enter on your keyboard.

            • Click Power Options.

            • Click Choose what the power buttons do.

            • Click Change settings that are currently unavailable.

            • Uncheck Turn on fast startup (recommended).

            • Click Save changes.

            Turn off secure boot from BIOS



            • Tap F2 key at the Dell logo screen to enter System Setup or BIOS.

            • On the left pane, click Boot Sequence.

            • Check that Secure Boot is set to Disabled. Within the BIOS go to Secure Boot > Secure Boot Enable, and set the checkbox to Disabled.

            • Change the Secure Boot Mode to audit mode.

            • Save settings and the machine will be restarted.

            Enable AHCI for dual boot



            • With a preinstalled Windows SATA mode set to IDE or RAID in BIOS.

            • To install dual boot we need to change SATA mode to AHCI from BIOS.

            • Create the Windows 10 local account:

              • Go to Settings > Accounts.

              • Select Family & other users.

              • Tap Add someone else to this PC.

              • Select I don't have this person's sign-in information.

              • Select Add a user without a Microsoft account.

              • Enter a username, type the account's password twice, enter a clue and select Next.

              • Change the Account type of this newly created account to Administrator.

              • Login using this new user account.


            • Right-click the Windows Start Menu. Choose Command Prompt (Admin).

            • Type this command and press ENTER: bcdedit /set current safeboot minimal

            • Restart the computer and enter BIOS Setup. On Dell Inspiron it is F2.

            • Change the SATA Operation mode to AHCI from either IDE or RAID.

            • Save changes and exit Setup and Windows will automatically boot to Safe Mode.

            • Right-click the Windows Start Menu once more. Choose Command Prompt (Admin).

            • Type this command and press ENTER: bcdedit /deletevalue current safeboot

            • Reboot once more and Windows will automatically start with AHCI drivers enabled.

            Install Ubuntu



            • After the OS burn, insert the pendrive and restart the machine.

            • Press F12 or F10 depending your machine.

            • Select USB/Removable media.

            • Select install Ubuntu.

            • Select Language and other options.

            • When it comes to partition option, select something else.

            • In the unallocated space:

              • Give 2 GB Logical space to swap memory. The swap size depends on your RAM size.

              • Give remaining Primary space to / partition


            • Select Windows Boot Manager as Device for boot loader installation.

            • Continue with the remaining process.

            Install Drivers (optional)



            • After successful installation of Ubuntu, update the system softwares.

            • To update the drivers:

            sudo apt-get update
            sudo apt-get upgrade
            sudo apt-get dist-upgrade
            ubuntu-drivers devices
            sudo ubuntu-drivers autoinstall


            • You may now access both Windows and Ubuntu in a dual boot manner.

            Reference:



            • Turn off fast startup Windows 10

            • Dual boot in NVMe SSD Dell

            • Turn off secure boot from Dell BIOS

            • Create local account in Windows 10

            • Dell documentation on creating dual boot





            share|improve this answer
































              0


















              Steps to install Ubuntu 18.04 alongside pre installed Windows 10 as dual boot in NVMe SSD.



              Hardware Information:



              • Dell G5 5587

              • Core i7 8750H

              • RAM 16 GB

              • NVMe SSD (Toshiba) 256 GB

              • HDD 1 TB

              • NVIDIA® GeForce® GTX 1060 6GB GDDR5 with Max-Q Design

              Download Files



              • Download Ubuntu iso file from Ubuntu website.

              • Download Rufus from Rufus website.

              Burn the ISO to a Pendrive



              • Insert a USB pendrive.

              • Backup the pendrive data if necessary.

              • Open Rufus.

              • Select Partition Scheme MBR.

              • Keep the other settings to default. E.g.: FAT.

              • Select the ISO and burn it to the connected pendrive.

              Create Unallocated Space for Ubuntu



              • Open disk management in Windows.

              • Shrink the volume where Windows is installed (NVMe SSD). The size depends on yourself. I have created 100 GB of unallocated space.

              Turn off Fast startup from Windows 10



              • Dual boot does not work when Fast startup option is enabled in Windows 10.

              • Right-click the Start button.

              • Click Search.

              • Type Control Panel and hit Enter on your keyboard.

              • Click Power Options.

              • Click Choose what the power buttons do.

              • Click Change settings that are currently unavailable.

              • Uncheck Turn on fast startup (recommended).

              • Click Save changes.

              Turn off secure boot from BIOS



              • Tap F2 key at the Dell logo screen to enter System Setup or BIOS.

              • On the left pane, click Boot Sequence.

              • Check that Secure Boot is set to Disabled. Within the BIOS go to Secure Boot > Secure Boot Enable, and set the checkbox to Disabled.

              • Change the Secure Boot Mode to audit mode.

              • Save settings and the machine will be restarted.

              Enable AHCI for dual boot



              • With a preinstalled Windows SATA mode set to IDE or RAID in BIOS.

              • To install dual boot we need to change SATA mode to AHCI from BIOS.

              • Create the Windows 10 local account:

                • Go to Settings > Accounts.

                • Select Family & other users.

                • Tap Add someone else to this PC.

                • Select I don't have this person's sign-in information.

                • Select Add a user without a Microsoft account.

                • Enter a username, type the account's password twice, enter a clue and select Next.

                • Change the Account type of this newly created account to Administrator.

                • Login using this new user account.


              • Right-click the Windows Start Menu. Choose Command Prompt (Admin).

              • Type this command and press ENTER: bcdedit /set current safeboot minimal

              • Restart the computer and enter BIOS Setup. On Dell Inspiron it is F2.

              • Change the SATA Operation mode to AHCI from either IDE or RAID.

              • Save changes and exit Setup and Windows will automatically boot to Safe Mode.

              • Right-click the Windows Start Menu once more. Choose Command Prompt (Admin).

              • Type this command and press ENTER: bcdedit /deletevalue current safeboot

              • Reboot once more and Windows will automatically start with AHCI drivers enabled.

              Install Ubuntu



              • After the OS burn, insert the pendrive and restart the machine.

              • Press F12 or F10 depending your machine.

              • Select USB/Removable media.

              • Select install Ubuntu.

              • Select Language and other options.

              • When it comes to partition option, select something else.

              • In the unallocated space:

                • Give 2 GB Logical space to swap memory. The swap size depends on your RAM size.

                • Give remaining Primary space to / partition


              • Select Windows Boot Manager as Device for boot loader installation.

              • Continue with the remaining process.

              Install Drivers (optional)



              • After successful installation of Ubuntu, update the system softwares.

              • To update the drivers:

              sudo apt-get update
              sudo apt-get upgrade
              sudo apt-get dist-upgrade
              ubuntu-drivers devices
              sudo ubuntu-drivers autoinstall


              • You may now access both Windows and Ubuntu in a dual boot manner.

              Reference:



              • Turn off fast startup Windows 10

              • Dual boot in NVMe SSD Dell

              • Turn off secure boot from Dell BIOS

              • Create local account in Windows 10

              • Dell documentation on creating dual boot





              share|improve this answer






























                0














                0










                0









                Steps to install Ubuntu 18.04 alongside pre installed Windows 10 as dual boot in NVMe SSD.



                Hardware Information:



                • Dell G5 5587

                • Core i7 8750H

                • RAM 16 GB

                • NVMe SSD (Toshiba) 256 GB

                • HDD 1 TB

                • NVIDIA® GeForce® GTX 1060 6GB GDDR5 with Max-Q Design

                Download Files



                • Download Ubuntu iso file from Ubuntu website.

                • Download Rufus from Rufus website.

                Burn the ISO to a Pendrive



                • Insert a USB pendrive.

                • Backup the pendrive data if necessary.

                • Open Rufus.

                • Select Partition Scheme MBR.

                • Keep the other settings to default. E.g.: FAT.

                • Select the ISO and burn it to the connected pendrive.

                Create Unallocated Space for Ubuntu



                • Open disk management in Windows.

                • Shrink the volume where Windows is installed (NVMe SSD). The size depends on yourself. I have created 100 GB of unallocated space.

                Turn off Fast startup from Windows 10



                • Dual boot does not work when Fast startup option is enabled in Windows 10.

                • Right-click the Start button.

                • Click Search.

                • Type Control Panel and hit Enter on your keyboard.

                • Click Power Options.

                • Click Choose what the power buttons do.

                • Click Change settings that are currently unavailable.

                • Uncheck Turn on fast startup (recommended).

                • Click Save changes.

                Turn off secure boot from BIOS



                • Tap F2 key at the Dell logo screen to enter System Setup or BIOS.

                • On the left pane, click Boot Sequence.

                • Check that Secure Boot is set to Disabled. Within the BIOS go to Secure Boot > Secure Boot Enable, and set the checkbox to Disabled.

                • Change the Secure Boot Mode to audit mode.

                • Save settings and the machine will be restarted.

                Enable AHCI for dual boot



                • With a preinstalled Windows SATA mode set to IDE or RAID in BIOS.

                • To install dual boot we need to change SATA mode to AHCI from BIOS.

                • Create the Windows 10 local account:

                  • Go to Settings > Accounts.

                  • Select Family & other users.

                  • Tap Add someone else to this PC.

                  • Select I don't have this person's sign-in information.

                  • Select Add a user without a Microsoft account.

                  • Enter a username, type the account's password twice, enter a clue and select Next.

                  • Change the Account type of this newly created account to Administrator.

                  • Login using this new user account.


                • Right-click the Windows Start Menu. Choose Command Prompt (Admin).

                • Type this command and press ENTER: bcdedit /set current safeboot minimal

                • Restart the computer and enter BIOS Setup. On Dell Inspiron it is F2.

                • Change the SATA Operation mode to AHCI from either IDE or RAID.

                • Save changes and exit Setup and Windows will automatically boot to Safe Mode.

                • Right-click the Windows Start Menu once more. Choose Command Prompt (Admin).

                • Type this command and press ENTER: bcdedit /deletevalue current safeboot

                • Reboot once more and Windows will automatically start with AHCI drivers enabled.

                Install Ubuntu



                • After the OS burn, insert the pendrive and restart the machine.

                • Press F12 or F10 depending your machine.

                • Select USB/Removable media.

                • Select install Ubuntu.

                • Select Language and other options.

                • When it comes to partition option, select something else.

                • In the unallocated space:

                  • Give 2 GB Logical space to swap memory. The swap size depends on your RAM size.

                  • Give remaining Primary space to / partition


                • Select Windows Boot Manager as Device for boot loader installation.

                • Continue with the remaining process.

                Install Drivers (optional)



                • After successful installation of Ubuntu, update the system softwares.

                • To update the drivers:

                sudo apt-get update
                sudo apt-get upgrade
                sudo apt-get dist-upgrade
                ubuntu-drivers devices
                sudo ubuntu-drivers autoinstall


                • You may now access both Windows and Ubuntu in a dual boot manner.

                Reference:



                • Turn off fast startup Windows 10

                • Dual boot in NVMe SSD Dell

                • Turn off secure boot from Dell BIOS

                • Create local account in Windows 10

                • Dell documentation on creating dual boot





                share|improve this answer
















                Steps to install Ubuntu 18.04 alongside pre installed Windows 10 as dual boot in NVMe SSD.



                Hardware Information:



                • Dell G5 5587

                • Core i7 8750H

                • RAM 16 GB

                • NVMe SSD (Toshiba) 256 GB

                • HDD 1 TB

                • NVIDIA® GeForce® GTX 1060 6GB GDDR5 with Max-Q Design

                Download Files



                • Download Ubuntu iso file from Ubuntu website.

                • Download Rufus from Rufus website.

                Burn the ISO to a Pendrive



                • Insert a USB pendrive.

                • Backup the pendrive data if necessary.

                • Open Rufus.

                • Select Partition Scheme MBR.

                • Keep the other settings to default. E.g.: FAT.

                • Select the ISO and burn it to the connected pendrive.

                Create Unallocated Space for Ubuntu



                • Open disk management in Windows.

                • Shrink the volume where Windows is installed (NVMe SSD). The size depends on yourself. I have created 100 GB of unallocated space.

                Turn off Fast startup from Windows 10



                • Dual boot does not work when Fast startup option is enabled in Windows 10.

                • Right-click the Start button.

                • Click Search.

                • Type Control Panel and hit Enter on your keyboard.

                • Click Power Options.

                • Click Choose what the power buttons do.

                • Click Change settings that are currently unavailable.

                • Uncheck Turn on fast startup (recommended).

                • Click Save changes.

                Turn off secure boot from BIOS



                • Tap F2 key at the Dell logo screen to enter System Setup or BIOS.

                • On the left pane, click Boot Sequence.

                • Check that Secure Boot is set to Disabled. Within the BIOS go to Secure Boot > Secure Boot Enable, and set the checkbox to Disabled.

                • Change the Secure Boot Mode to audit mode.

                • Save settings and the machine will be restarted.

                Enable AHCI for dual boot



                • With a preinstalled Windows SATA mode set to IDE or RAID in BIOS.

                • To install dual boot we need to change SATA mode to AHCI from BIOS.

                • Create the Windows 10 local account:

                  • Go to Settings > Accounts.

                  • Select Family & other users.

                  • Tap Add someone else to this PC.

                  • Select I don't have this person's sign-in information.

                  • Select Add a user without a Microsoft account.

                  • Enter a username, type the account's password twice, enter a clue and select Next.

                  • Change the Account type of this newly created account to Administrator.

                  • Login using this new user account.


                • Right-click the Windows Start Menu. Choose Command Prompt (Admin).

                • Type this command and press ENTER: bcdedit /set current safeboot minimal

                • Restart the computer and enter BIOS Setup. On Dell Inspiron it is F2.

                • Change the SATA Operation mode to AHCI from either IDE or RAID.

                • Save changes and exit Setup and Windows will automatically boot to Safe Mode.

                • Right-click the Windows Start Menu once more. Choose Command Prompt (Admin).

                • Type this command and press ENTER: bcdedit /deletevalue current safeboot

                • Reboot once more and Windows will automatically start with AHCI drivers enabled.

                Install Ubuntu



                • After the OS burn, insert the pendrive and restart the machine.

                • Press F12 or F10 depending your machine.

                • Select USB/Removable media.

                • Select install Ubuntu.

                • Select Language and other options.

                • When it comes to partition option, select something else.

                • In the unallocated space:

                  • Give 2 GB Logical space to swap memory. The swap size depends on your RAM size.

                  • Give remaining Primary space to / partition


                • Select Windows Boot Manager as Device for boot loader installation.

                • Continue with the remaining process.

                Install Drivers (optional)



                • After successful installation of Ubuntu, update the system softwares.

                • To update the drivers:

                sudo apt-get update
                sudo apt-get upgrade
                sudo apt-get dist-upgrade
                ubuntu-drivers devices
                sudo ubuntu-drivers autoinstall


                • You may now access both Windows and Ubuntu in a dual boot manner.

                Reference:



                • Turn off fast startup Windows 10

                • Dual boot in NVMe SSD Dell

                • Turn off secure boot from Dell BIOS

                • Create local account in Windows 10

                • Dell documentation on creating dual boot






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                edited Jun 16 at 5:27

























                answered Jun 16 at 5:22









                arshoarsho

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