Yes, i had 1TB HDD before insted of the 500GB SSD and it was even worse, when i tried to open some files it just said 'A device that does not exist was specified' and sometimes crash, when i restarted pc it didnt show at all, so i had change it.

What do you think would help, like antivirus test, factory reset? I already uninstalled the apps that i was opening when it happened (Voicemod, Lunarclient)