I have an old laptop with a broken screen and an SSD filled with Windows. It's really inconvenient to use it whenever I need Windows for something. I'm considering dual-booting since my new device has better hardware. However, I've heard that installing Windows after Linux could cause issues, and that makes me a bit worried. So, is it safe to insert a Windows SSD into my laptop that already has Linux on another drive? Do I need to do anything to the drives beforehand?
4 Answers
I've done this for years without any problems. My old machine couldn't run Windows 11, but as far as I know, it can work well as long as everything's set up right.
When installing Windows, it creates an EFI system partition that can overwrite the Linux bootloader. If you already have Windows on the SSD, it shouldn’t overwrite anything. Just remember that you might need to adjust your bootloader settings to dual boot, usually by mounting the Windows EFI system partition and running the necessary grub configuration command.
Here's a thought: why not run Windows in a KVM (Kernel-based Virtual Machine)? It could save you from a lot of potential headaches!
You should be fine! Many folks do this without issues. Linux won't mess with your Windows SSD unless you specifically mount it. Windows can't access the Linux drive either since it doesn't recognize the file system. Just keep an eye out; there might be a prompt asking if you want to format your Linux drive when you boot into Windows. If that happens, just hit NO! And if you want to play it extra safe, consider encrypting the Linux drive.

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