various problems-disk drive failure soon and virus problem

Ok, I have a few month old Sony VAIO that I was having problems with so I used my factory restore disks to return to "factory". I then downloaded a few utilities programs such as cpuz, gpuz, aida64, pc wizard, glary utilities, hwmonitor, tmonitor and some drivers and programs for mine and my girls cameras. By the next day it was acting really weird. I would notice programs opened and closed I hadn't used, it would shut off by itself and restart and the cpu was running super fast when all programs were closed. I then noticed my virus software was shutoff and my firewall was down. I disconnected my router and modem right away and looked in my event viewer and noticed that what ever virus I got was allowing him access to everything and there were a bunch of changes to the registry . After I shut off my computer it would rarely start and if it did it would freeze up and or the cpu would always be at around 90-100 percent. I tried my repair disc w/ all options, backups, system images, manufacurer discs, restore discs etc. Nothing would work. They would either freeze largest through, wouldn't start at all, get errors not allowing me to run the program/test etc., or it would finish but then wouldn't restart. I finally got my manufacurer system restore disc to complete then restart and finish loading but then it still wouldn't load windows, I kept getting different errors wich I don't recall. Finnally I tried a fifteenth version of a clean install of windows 7. That worked fine and I thought I fixed everything until now. It even was running better than when it was brand new because it didn't have all the bloatware. Now its freezing, the keyboard or mouse won't work. I havnt even took it online yet. All I can do is turn it off with the power button, restart it and it seems to work fine for a minute, and then freezes again.

Also I have another older HP laptop with xp that was running slow and no matter what I did I couldn't get it cleaned up so I installed windows 7 along side xp. I can choose to boot from either. It was running great and I hooked it up to the internet, downloaded windows updates and when they were finished and now whenever I start it it say possible hard disk failure soon, or somthinf like that.
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Any ideas. I have a MS office 201 class that I need to get started on, what should I do. Oh also I installed ms office on the first pc then it broke, reinstalled it on the same pc with the other version of W7. But now I need to install it again on wuchever of I get going, will I have a problem? I also hqve another small acer without a drive as well that I could use for time being if I hqve to if I'm allowed to install it on there and if its possible to copy office to thumbdrive.

it would shut off by itself and restart and the cpu was running super fast

You mean high CPU usage or the CPU fan spinning fast?

I then noticed my virus software was shutoff and my firewall was down

What antivirus you use? I recommend MSE
You can undo system changes with a System Restore

If that doesn't work run SFC /SCANNOW Command - System File Checker

Run a scan of Malwarebytes
Remember to do these in safemode

The fan was spinning fast and the cpu usage was high. I use Norton that I get for free with my Comcast. I've had to reset it to factory like 5 times in the last 6 months because I keep.getting viruses.

yowanvista said:

it would shut off by itself and restart and the cpu was running super fast

You mean high CPU usage or the CPU fan spinning fast?

I then noticed my virus software was shutoff and my firewall was down

What antivirus you use? I recommend MSE
You can undo system changes with a System Restore

If that doesn't work run SFC /SCANNOW Command - System File Checker

Run a scan of Malwarebytes
Remember to do these in safemode

None of this stuff you suggested was possible the first time because it wouldn't start in regular or safe mode, this time it might work since I can start it for a minute or two before it freezes.

So I turned it on again this morning for the first time after it not being turned in since last night. I forgot to mention this but half the time the screen dosnt come on when its acting like this. When I put in one of my repair discs it sounds exactly like it does when the screen is on but you can't see anything, again it only does this half the time. So I put in a repair disc and the screen stays black and the cpu fan turns o. Full blast, its cold too remember. Any ideas what to do. I've tried running all the repair. disc options, backups, system images, restore discs, and even a different barebones brand new fresh install of w7. The barebones w7 worked perfect for about 15 hours and now its doing the same thing. I didn't even go online with it either so it couldn't have got another virus. It's still under warranty, I just wanted to see if I could fix it because the wRranty repair usually ends up taking 2-4 weeks.