Various problems have been occurring with my computer. I am fairly certain that it isn't malware/viruses/worms/trojans, but I don't know what it is. Files are becoming corrupt and/or unreadable, and it is suggesting that I should perform a CHKDSK. I perform CHKDSK c: /f, and at stage 2/5, it stops at 20% and won't continue. (And no, it's not just slow. I waited 27 hrs w/ no change, with the same results 10/10 times.) What would you suggest that I would do? Also, I get BSODs.