I have Ubuntu installed on my SSD and Windows installed on my hdd. I followed this guide when I was installing Ubuntu (part from "If you cannot disable or unplug the disk with Windows 10", also the same thing is said here), i.e. I installed Ubuntu, turned off some flags on Windows, installed Grub on Ubuntu and turned back on flag on Windows. Now I can choose when booting: windows or ubuntu. Now I want to move my windows to m2 ssd. So my question is, how do I correctly install now Windows so I won't lose my Ubuntu installation? Because it says when installing windows is doing something that will break the boot and it will see only Windows as loading option or something like this. Both Windows and Ubuntu were installed on GPT with UEFI.
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So, what worked for me:
- Physically disconnect all the drives except new one
- Install Windows on it
- Connect old hdd with windows, transfer all data, format old hdd
- Connect ssd with Ubuntu
- Load from Boot-repair on USB
- Run boot repair
And after that I again could choose between Windows and Ubuntu when loading on GRUB screen. Even tho it left some uneccessary stuff, Boot-repair is a good tool if you don't want to break anything.
Arzybek
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