Windows 10: Cannot access OS or properly boot from Boot drive after a Windows update

I updated Windows 11 last night, slept, woke up, and used it a little before going to work. When I got back, the PC was on, but on the BIOS screen instead of the desktop or lock screen. I tried to boot from my SSD to find that it wasn’t being shown as a boot drive in my BIOS, but it was shown in my listed drives on the BIOS. It, and my other drives are also verified as readable in the repair menu I am booting from a Media Creation Tool to try and fix this. I’ve tried a bunch of solutions on the internet and this website to no avail. I always get roadblocked by errors or command line response

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Windows 7 booting off wrong drive?!?!?

Please move if this is in the wrong place.

I have two hard drives, a 1.5TB drive, and a 160GB drive. Windows is installed on the 1.5TB drive, as are all my files and programs. The 160GB drive has a bunch of old files, and apparently the bootmgr and boot folder. Nothing else is on the 160GB drive, other than media files etc.

If I remove the 160GB drive from the machine, windows refuses to boot, plug it back in, it works fine. The setup with two hard drives I have now is temporary, as the 160GB drive will go into another machine.

My question is, can someone give me a step by step on how to make windows force to boot off the 1.5TB drive, ignoring the 160GB drive in the boot process completely?
I don't know how to do this in Windows 7, on XP I would just run the /fixmbr command and its related ones.

Any help would be appreciated.

Note: I would really really rather not have to wipe and reinstall, I know it can be done without one as I've had this issue with XP before.

 

Windows Booting beep!!

Check the boot order in the BIOS also, it might not have the hard drive as primary in the boot list.

 

Windows 8 Secure Boot Feature: Not So Secure?

So Linux is switching to secure boot also? Or they have to because of UEFI?