How do I reinstall Windows 10 while keeping my dual boot configuration? I want to do a clean install of Windows 10. I have Ubuntu 16.04. I upgraded from Windows 7 to Windows 10.
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The problem in this situation is that, if you install Windows 10, it will overwrite the MBR. Windows thinks it's the only OS in the world.
sudo grub-install /dev/sdXwhere
sdXis your hard drive. The first hard drive is called
sda, so if you only have one hard drive, replace