nope, it doesnt show any corrupted file.
guess i have to take it to shop and reformat it.
btw, after reformat, what should i do to prevent this problem in future?
create backup? but how? image?

create a restore point before u update or install a new driver.

The restore point is permanent?
Lets say after half a year am I still able to restore it back using that restore point?
Noob here.

i would advice against enabling the restore option, it's the devil >_>!

it's always better to solve an issue than restore, imho.

But for my case, I'm unable to solve the problem.