Question SSD not showing up in boot priority

[Mexicann]

Hey guys, my computer was working fine and then I installed another hard drive that had windows on it (I wanted to test if it worked or not). Then I kept getting Automatic repair tool messages from windows on my main m.2 ssd. It had Windows 11 on it and it will not show up on the boot priority unless I have CSM enabled. But when I have CSM enabled, it gives me a blue screen code "0x000021a".

I would appreciate some help because I have no idea how to fix this now. Windows 11 and this secure boot stuff is so bad.

 

[Mexicann]

Maybe I explained it horribly, but I tried installing my brother's hard drive onto my PC because I wanted to test it and see if the hard drive is a problem. His PC wouldnt boot and would say its going through an Automatic repair with Windows.

So I unplugged his hard drive from my pc and then I turned my computer back on and then my main drive wouldn't show up in the boot priority anymore.

 

[CountMike]

Maybe I explained it horribly, but I tried installing my brother's hard drive onto my PC because I wanted to test it and see if the hard drive is a problem. His PC wouldnt boot and would say its going through an Automatic repair with Windows.

So I unplugged his hard drive from my pc and then I turned my computer back on and then my main drive wouldn't show up in the boot priority anymore.

That often happens when booting a drive in the PC that OS wasn't installed on. If there was another OS drive in it during attempted repairs it can be corrupted too.