I'm looking to install Windows 10 on a new 2TB M.2 SSD I've bought, but I want to keep my main 4TB M.2 SSD, which has Windows 11 and all my important data, unaffected for now. Is there a way to temporarily disable booting from the Windows 11 SSD so I can boot directly into Windows 10 from the new SSD? Any tips on how to do this or what the best approach would be?
3 Answers
Just a heads up, when you're installing Windows 10, it may save the boot information on the Windows 11 drive. This could lead to boot issues later on. Some suggest removing the Windows 11 SSD before installation to prevent any conflicts. If you’re not keen on that, look into setting up a dual boot instead.
You should definitely check your boot order in BIOS settings. If you install Windows 10 while the Windows 11 drive is connected, it can mess with the boot partition of that drive. If you want a clean setup without dual boot confusion, it’s recommended to disconnect the Windows 11 SSD temporarily while installing Windows 10.
When installing Windows 10 while you still have your Windows 11 drive connected, it's likely that the installer will modify the existing boot options and set up a dual boot instead. This means you might get a prompt asking which version you want to boot during startup. If you're specifically looking to avoid that, it’s best to change your boot order in the BIOS after the installation.

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