It's mine :\
It all happened, when I opened an executable file, don't ask me for any details of this executable file cuz I've done everything to remove it(even in my head).
That's when things went wrong. I can't access Windows Security, Task Manager, Run as Admin, etc.
I tried running a scan with Kaspersky, but it takes yeeeeeaarrs to scan, I left it for a day it went from 0 - 8%??
So yeah, that's all.