Did not find my situation here. At least, not that I could recognize. The site suggests that the issue could be a hardware conflict. So I checked Device Manager and sure enough there's a problem. The SM Bus Controller wasn't happy. I tried to install a driver. It couldn't find one. I have the WinXP Home System Recovery CD/DVD that came with computer. As near as I can tell, this one will "merely" reset computer to when it came out of the box, losing all data, etc. (I've been calling it my last resort cd.)
Anyway, when I couldn't install a driver, I tried disabling it. That didn't help either.
Still working on the hardware possibility, I checked with friend (owner) and she said that the only thing that had been added was a new sound card, and possibly a printer (HP Deskjet 3740). The only other thing she's plugged into it is an ipod charger. I asked when the sound card and printer were added vs. when the problem started. She said the problem started about the time she got the computer back from the local computer fix it shop who installed her sound card (second person who's told me they are never going there again). But there are no apparent issues with the sound card showing in Device Manager. I looked at all the Sound hardware drivers listed in Device Manager and they all had Microsoft's name on them somewhere.
I also uninstalled the printer using add/remove programs (just in case) as follows :
Uninstalled HP Deskjet 3740
Uninstalled HP Product Detection
Uninstalled HP Software Updater
Turned off the computer
And then it restarted itself again
I've looked in the Admin Tools Event Viewer. Every time it reboots, the following two warnings are posted in the Applications Error Records.
User: NT AUTHORITY\SYSTEM
Event ID: 1517
Windows saved user OWNER-B2AB92955\Owner registry while an application or service was still using the registry during log off. The memory used by the user's registry has no been freed. The registry will be unloaded when it is no longer in use.
This is often caused by services running as a user account, try configuring the services to run in either the LocalService or NetworkService account.
Event ID: 1524
Windows cannot unload your classes registry file - it is still in use by other applications or services. the will be unloaded when it is no longer in use.
A poster at the elder geek site said he'd had something similar with a newly installed printer. He turned off fax services and seemed to fix it. That's why I tried uninstalling the printer (see above). But as I said, that didn't help either.
How can I tell what has a hold of the registry and more importantly, how do I convince whatever it is to let go???
Paula the perplexed