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I've been using Windows 11 for a few months now and everything has worked fine so far. Today my PC started up with a blue screen—no text, nothing at all. I connected and disconnected all my drives (one M.2 and one SATA SSD) but they still appeared in the BIOS as before. My USB drive with the Windows 11 install was still present, so I reinstalled it. It reported that my PC didn’t meet the system requirements, which is strange given how long I’ve been using Windows 11. I checked the BIOS to see if TPM and Secure Boot were active; they were, but Secure Boot was off (TPM was enabled). I turned it back on, which also required enabling UEFI boot. Still got the same blue screen when I tried to boot into Windows. I ran chkdsk but didn’t fix anything. Then I downloaded a Windows 10 install and attempted to boot with UEFI enabled again—still faced the same issue. I had to turn off Secure Boot and convert the drives to MBR to get into Windows 10. There haven’t been any updates in the past week, and no BIOS updates either. I haven’t changed anything recently. I’m running out of options. My system details: MSI B450 A Pro Ryzen 7 2700x, 16 GB RAM.
That does sound weird. What can happen is that your bios reset at some point. There is an AUTO CLR_CMOS option, in bios, that can be enabled. That will do that if your computer fail to boot/load os enough times. Cmos battery could be failing, and it is cheap to replace. But also easy to check by removing power to your computer and check if it has reset after a few minutes. To have proper uefi with secure boot enabled on that motherboard, you need to do as follows: (according to the manual) Go to Advanced menu in the bios. Make sure Windows 10 WHQL Support is enabled in Windows OS Configuration menu. This should enable the Secure Boot sub-menu, make sure this is enabled and standard keys are loaded. Also applies to W11 even if it says W10. Idiot manufacturer should have just written Windows WHQL Support, but I digress. In the Boot menu, Boot Mode Select need to be UEFI (only). This should happen automatically when you enable the above options. In the Trusted Computing menu, Security Device Support should be enabled and AMD fTPM switch set to AMD CPU fTPM (unless you have a dedicated TPM module installed). Your drives need to be GPT formatted. If you are still unable to install Windows 11 then there is something seriously wrong. Also worth checking for any updated bios versions while you are at it.
I plan to try it tomorrow since I'm exhausted and a bit frustrated (I've been working on this for hours). Thanks for your input!