finally solved . removing my school/work account solved all my problems even windows defender didn't work due to some restrictions laid by the school/work account.
Okay so I just did the same and ofcourse it worked. I remember when I opened my laptop this morning, windows wanted me to change my PIN code and it was saying something related to my organization(school). I didn't read the whole message tho, but I was like "umm what do you mean my organization wants me to change my PIN?..."