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I am currently on Ubuntu 20.04.1 LTS and I want to install windows 10 without removing my ubuntu. I want to install win10 on my real PC not virtualbox.

How can I do it?

Will win10 cause problem with grub boot loader?

Mugdho MNS.
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  • UEFI or BIOS system? UEFI or BIOS install of Ubuntu? Is drive gpt partitioned? BIOS/MBR mode will cause major issues, Windows often deletes Linux partitions, but UEFI/gpt usually works. But always have good backups. What brand/model system? https://msdn.microsoft.com/en-us/library/windows/hardware/dn898510%28v=vs.85%29.aspx#RecommendedPartitionConfigurations last install makes itself first in boot order, so if you want Ubuntu, you have to change that. – oldfred Jan 15 '21 at 14:57
  • BIOS. Dell Vostro 3450. – Mugdho MNS. Jan 16 '21 at 11:39
  • Then Windows only installs in primary NTFS partition with boot flag with MBR. Normal install is two primary partitions, one boot and one main or your c: "drive" partition. But it can be installed into one primary partition. – oldfred Jan 16 '21 at 15:00
  • that question is for UEFI system. – Mugdho MNS. Jan 20 '21 at 03:53
  • No, that question is for legacy/BIOS, like your's. – ubfan1 Jan 20 '21 at 05:25

1 Answers1

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Step 1: make a ntfs partition from gparted or gnome disk.

Step 2: create a bootable usb drive containing windows 10

Step 3: Install windows on that ntfs partition

Step 4: Create a bootable usb containing ubuntu

Step 5: Boot-up using the usb with ubuntu but don't install ubuntu

step 6: To install boot repair open terminal and enter these commands::

  sudo add-apt-repository ppa:yannubuntu/boot-repair

sudo apt-get update


sudo apt-get install -y boot-repair && boot-repair

step 7: Open boot repair and select recommended repair. It will reinstall grub bootloader

Step 8:Reboot after the repair is done.

Mugdho MNS.
  • 119