Windows antifivrus full scan crashes PC

So I have this weird problem when I came back to using my PC after two weeks

Context: I was away from my PC for like two weeks and when I tried launching I was greeted with an activate windows sign which was weird, but I didn’t think any of it, I kept using my pc as normal and decided to run a full virus scan, and I was surprised when it froze my pc and crashed it every single time

Steps I did:

sfc scan

chkdsk

used boot time scan from windows antivirus

used malwarebytes full scan/rootkits, nothing found

launched windows in safe mode, but antivirus wasn’t working, I’ll try that again after I’ve reset my PC and edit if it works

reset my windows as I mentioned and chose keep necessary files as a last resort

still the problem persists, I’m afraid to do a full reset and the problem doesn’t get fixed, hopefully someone here might have an idea on what to do, or what might this be?

note: I’m on Windows 10, antivirus still doesn’t work in safe mode