My name's Ian and I am new here. I don't know what else to do about my situation, it seems I have tried everything. I am just hoping that I do not need a new hard drive.
Here's the problem:
The other day, when I logged onto my computer, I noticed my computer running slow when trying to navigate simple things such as the internet browser (Google Chrome) and the folder directory (Windows Explorer). Furthermore, I cannot seem to download any windows updates on my system and when I perform a disk check on my C drive, a lot of files come up as unreadable (the process takes hours).
Here's what I have tried:
1. Rebooted and let the disk check finish twice. Many files were unreadable.
2. Defragging the disk drive. Didn't seem to do anything.
3. Ran MalwareBytes in Safe Mode. Nothing was found.
4. Rebooted and navigated to the "repair" section of the advanced options. Didn't fix the problem.
5. Performed a registry check using CCleaner. I don't think it helped.
My thought after doing all of this (aside from buying a new hard drive) is that there are some registry files missing from the OS. Either that or I have some pretty serious malware that MalwareBytes can't even pick up. I've been reading a little about ComboFix, but I understand that is a complicated program and I should only run it with expert guidance.
As you can tell, I am familiar with how computers work, but I am by no means an expert. Could I get someone's input on the matter? Is there anything else I can do as a last resort, such as format the drive to factory settings (after I back up the files of course) or use ComboFix? I am willing to do anything.