I have checked the system info and realized that Windows is installed in Legacy mode. I thought it was in UEFI so I decided I should do a reinstall (I'm not interested in UEFI for W11). I have tried both Rufus and the Windows Installation Media Tool to make a Windows 10 Pro installer USB stick, however both installation methods crash, with the motherboard splash screen glitched and nothing happening. I can get into the USB stick if I boot it in Legacy mode, however. I also had an issue with the Linux installer crashing too, so it might all be linked together. I did have Windows installed as UEFI on an old SATA SSD, however that was done when I had an older motherboard (Asus) and CPU that I swapped out.
My specs are as follows: Ryzen 5 3600, MSI B450 Gaming Plus Max, R9 390 GPU and as a boot drive an M.2 Kingston A2000 500GB. I have tried running the default BIOS settings, putting the USB stick in the 2.0 port, and I also have secure boot off. My USB stick is quite old, and quite used. Maybe that is the problem, however I always used this stick for my Windows installs, so I dont know why it would stop working like that.
Any help would be apreciated.