Dell Inspiron 1501 laptop.
AMD mobile Sempron 3500+ 1800mhz
1 G ram
60 GB Toshiba MK6034GSX H.D.
Windows XP SP2
AVG anti virus
Zone Alarm personal firewall
It has been extremely slow on startup and after starting, it crawls. Get's hung up if it has more than one task to run.
This started when I accidentally left it turned on all night with my email and Firefox running. A few times upon startup since this started, I have received assorted messages such as this:
SysPro.sysinfo.XML is not a function, OK?
Loading PBR for descriptor 2......... done........ disk read error..... ctrl, alt, del to restart.
Following file missing - \Windows\System 32\config\system
I've tried to restore with the Dell operating system disc that came with it, and it did improve slightly as in, I haven't gotten the syspro or file missing messages since. I did get a failure message at the end of the attempted reinstall however. It still crawls though and I still get the PBR message once in a while.
I've tried windows system restore, set 4 different restore points, and it says it failed, can't restore.
I've run check disk, which took forever, and it found nothing.
AVG anti spyware
Super Anti Spyware
Hijack this (checked by a close friend)
All of these found nothing but a low risk cookies.
Any ideas? Did I possibly damage the processor leaving it on all night? Hard drive? Or is this an XP problem? The warranty runs out on this machine in about a month, and Dell has been no help at all. All I get is automated responses from them.
Thank you for your time.
p.s. I'm posting this message using my desktop puter. The laptop is running next to me and I've been watching the CPU usage chart. It's running 0% to 7% with occasional spike to 90+% for no reason that I can see.