Yesterday, while watching a movie and surfing the net at the same time, my computer started having hang-ups which lasted about 5 seconds at a time at 2-3 min intervals. Finally it froze altogether at which point I rebooted.
1. First reboot got me to my desktop where the system froze
2. Second reboot got me to the windows loading screen, where it stayed for a long time and rebooted by itself again
3. Third time I chose to reboot in safe mode. Started running AVG 8.0 scan and spybot, but froze again. Scans were not complete
4. Fourth time never made it to windows load screen, just blank and eventually self rebooted again
5. Fifth time got into windows safe mode again, balloon popped up on taskbar that said "Unknown Hard Error" along with a popup box that said the same thing. At this point I thought hard drive was bad since it would stop whenever there was a hangup.
6. Rebooted a couple more times each time with the system hanging up at different points, including a hangup while loading safemode again.
7. Last reboot everything just went back to normal. I did a system restore point from the day before. Restore gave me the same hangup problems that I experienced at first so I undid the restore.
8. Did a reg clean, disabled some startup services, downloaded some windows updates, ran spybot and AVG both of which were clean.
Everything seemed fine for a while.
Today, things have gone totally downhill. After being on for most of the day with me cleaning up the HD and registry a bit, I decided to do a CHKDSK. CHKDSK started after it asked me to reboot. It eventually got stuck on step 5 out of 5, at 5%. It was there for over an hour. Thunderstorms rolled in and we lost power for a bit.
Now computer does not boot.
With Normal Mode or Last Good Boot Settings, it gets to the windows load screen and restarts itself.
With Safe Mode it loads a bunch of stuff, prompts "Press ESC to cancel SPDV.sys" (or something like that, it's only on the screen for a second) and restarts itself.
I am using XP Home SP2.
Right now that's all the computer does. Any help is appreciated.