Windows 11 booting loop

[Heide]

Hello! So I haven't reinstalled Windows 11 for a very long time, and I could feel that when using the PC. SO I wanted to reinstall Windows and make a factory reset.

What I did:

1. I plugged my flashdrive with the Windows 11 installed from Microsoft into the PC.
2. Restarted the PC and booted into the installer.
3. Went through the usual stuff and deleted all petitions as I wanted a total clean reset
4. Clicked install

However, when it was installing it restarted as it sometimes does. This time it went directly into the BIOS.

Now I am having trouble with it not booting properly into Windows.

What I've tried:

1. I put the Windows Boot Manager as priority #1
2. Tried booting into the flashdrive again to see if something happened - nothing did.

I am kind of thinking that I need to remove the other NVMe SSD from the motherboard to see if that helps. I can see that that is a popular fix I've read among other forums.

I need some other ideas on what to do. Please help!