[SOLVED] School assigned laptop not booting with error 0xc000021a

[Nosebrain]

Context: I'm a pretty bored kid with a lot of free time and I thought about booting Windows 10 from a flash drive on my school laptop. Both OS's have worked simultaneously for months now, however I switched to the dedicated school Windows 10 and now it boots with the error "0xc000021a". Is there some fix for this that I can manually do? I've followed a video on YouTube but I'm really not sure what to do. I'm pretty broke so I don't wanna pay the school lmao and I can't really go out rn cus of the rona

 

[hang-the-9]

Are you still trying to boot with external drive attached? If you are remove it and try again.

If what you did left a restore partition on the system (If it had one to begin with) you can try doing a system restore to factory defaults. It's likely the school systems are not setup just with a base Win 10 setup but would have policies in place to prevent tampering with so you would need to contact them and ask how to do a clean setup on a system.