Computer is constantly freezing up. Shadow copy issue?

My computer is constantly freezing up. On start-up things seem fine, but after a few minutes, I am unable to interact with anything cause the cursor indicates something is trying to load, but never does and then freezes.So I have no choice but to turn off my computer. I really need help, I am trying to avoid having to do a clean install, I don't know how to backup things properly, and Im afraid I will have to re-install alot. This is my first time on a forum like this and I need specialized help. Before I go on, here is all the list of things I have tried to tried to fix the problem with:

-Disk Check
-Disk Defragment
-System Restore (no restore points)
-Virus Scan with Mcafee and Malware Bytes (viruses/malware was found and removed, but problem persists)
-Last good Configuration

I am currently in Safe Mode with Networking and everything is fine there luckily.
Now I think I might know what the problem is, but I need to know how to fix it. In the Event Viewer, I see several errors:

-Ntp Client was unable to set up a manual peer to use as a time source cause of DNS resolution error on 'time.nist.gov,0x9. The error was: no such host is known (0x80072AF9)

-The shadow copies of Volume C: were aborted cause of an IO failure on volume C:

-The shadow copies of Volume C: were aborted during detection because of a critical control file could not be opened

-Audit events have been dropped by the transport. The real time backup file was corrupt due to improper shutdown


Can someone give me some advice? I'll provide as much info as possible.

Looks like you have a disk problem. Run a chkdsk /r at boot.

I mentioned that I already tried Disk check. I've tried it several times. It never seems to help despite the huge length of time it takes. I've also tried Memory Diagnostic