Computer Freezing Shortly After Boot

[Ziek` 32]

I have recently started having an issue with my Vista desktop. I've had it for almost 4(?) years and have had very few issues until now. Within the past couple days, my computer has decided to start freezing shortly after boot. I log in, everything seems fine. I let it set for a few minutes to make sure all the services have started. Then, I try to do something and it freezes. Something as simple as trying to get Google Chrome to open, or even Task Manager via the right-click menu on the Start bar. It doesn't completely freeze, though. I am still able to move my mouse around. It stays frozen for 5-15 minutes then unfreezes on its own and goes through all the things I told it to do. However, once I try to do something else, it'll freeze again. I have not installed anything recently, nor updated any of my drivers recently. I thought it my processor was overheating due to dust, so I blew it out. Didn't help. When it freezes, the processor light on the tower is solid. I am a Network Technician Assistant at a school district, so I know my computers fairly well. I've never had this problem, though. I was able to get Task Manager to open and it only shows my CPU usage to be 1-7%. I am completely out of ideas. Care to help a fellow out? If you need some more info, just ask.

EDIT: I forgot to mention that I have booted in Safe Mode and it worked perfectly fine. I ran a full virus scan which found nothing. I also ran a Boot-time Scan which also found nothing.

EDIT2: I was able to get Task Manager to stay open during one of the freezes. It's actively monitoring the CPU and Memory usage. CPU Usage is 1-3% and Physical Memory is 34%.

[Marcus01 0]

I had this problem. I had to reformat hard drive. Its most likely a corrupt windows file.

[Kingdomkey01 0]

I believe you are experiencing [url=http://www.troublefixers.com/does-your-computer-hangs-frequently-fix-it-in-two-easy-steps/][b]hard hangs[/b][/url].

Basically hard hangs are when your hard disk fails, and freezes, or 'hangs'.

EDIT:
I could be wrong, I just read your post more carefully. I guess the easiest way is to back up any important files and reformat. Edited May 19, 2011 by Kingdomkey01

[Ziek` 32]

Reformatting would SUCK. I have sooooo much shit. Maybe I'll see if I can do a restore to about a week ago.

[Kingdomkey01 0]

[quote name='Sick`']Reformatting would SUCK. I have sooooo much shit. Maybe I'll see if I can do a restore to about a week ago.[/QUOTE]

If the restore is no good, then it's your hard drive. :X

[Marcus01 0]

[quote name='Sick`']Reformatting would SUCK. I have sooooo much shit. Maybe I'll see if I can do a restore to about a week ago.[/QUOTE]

I did restore and it didn't work :\ so you may have to reformat that 600gb+ of porn ;)

[Ziek` 32]

Someone on BleepingComputer seems to think I have malware. Going to run Malwarebytes in Safe Mode in a few.

Also, doesn't reformatting wipe out EVERYTHING, including OS?

[Kingdomkey01 0]

[quote name='Sick`']Someone on BleepingComputer seems to think I have malware. Going to run Malwarebytes in Safe Mode in a few.

Also, doesn't reformatting wipe out EVERYTHING, including OS?[/QUOTE]

Yes, you'll need a new installation disc, or if you have a brand-computer, the computer should have came with a reinstallation disc of some sort.

[Ziek` 32]

As far as I can remember, mine came with no disk.

[Marcus01 0]

Lol, reformatting doesn't get rid of OS. Rofl, it just wipes your hard drive clean and you just go through computer setup process.