Last night we did have some progress (?) in terms of errors at least. It crashed in the same way as described above, and after a manual reboot, it automatically ran chkdsk. It now won't start in Safe Mode, though it will go into normal Windows OK. When it crashed today, it did actually throw up an error message though:
"Generic Host Process for Win32 Services has encountered a problem."
Then the usual error report send / don't send message. We manually rebooted and an error message popped up when Windows loaded saying:
"svchost.exe - Application Error. The exception illegal instruction. An attempt was made to execute an illegal instruction (0xc000001). Location 0x76da7235. "
I clicked OK to stop the service rather than cancel to debug. The PC then failed to get an IP address and we had to restart the DCHP service to fix it. I don't know if it's related but we've been having problems with our wireless connection recently too, but fixed that by opting for a neighbour friendly option on the router. The only other strange thing we've noticed is that we can't install SP3 - it fails when we try. No idea if that's related or not? We have Automatic Updates on.
Does anyone have any idea what is causing these crashes? It's frustrating that we're not generally getting error messages - it makes it so hard to work out what it is!! We've not installed any new software or hardware recently.
Thanks for your help!
Edited by drunkymunky, 21 August 2009 - 12:23 PM.