With my beta copy of Windows 7 (7100) fast approaching expiry, I went and grabbed a fresh copy (x64). After some initial issues installing over the top of vista, I deleted the Vista and Windows 7 Beta partitions and installed it there.
However, now I get unexpected shutdowns on a regular basis after a while of fairly simple use. I have not installed any new hardware except for a wireless card (D-Link DWA-556).
The shutdowns are sudden - no BSOD, just a hard restart.
Some of the things that have caused the restart in the last 24 hours:
- Running a full scan of AVG (didn't matter what drive I was scanning. Uninstalled AVG and installed AVAST - full scan OK).
- Installing Office (after the restart, tried again, no problems)
- Opening Firefox, 2 minutes after a clean restart.
- Installing Keepass (this happened 3 times, so I installed it using Safe Mode without issue and it now runs without issue).
Some things I've done:
- Windows Update
- Memtest86 - no problems found
- Windows Memory Diagnostic - no problems found
- Hard drive scans - no problems found
- BIOS - up to date
- MB - Dell reckons it's up to date
Because I don't get a BSOD - I just don't know where to start looking to find the source of the issue. And the first set of crashes was when I had literally only just installed AVG. I haven't even plugged in my USB hub yet. And I never had any issues like this for the 6 months or so that I ran Win 7 Beta.
Does anyone have any ideas for diagnosis? Is there anywhere else to look within Windows for clues?
- Dell XPS 435 Desktop
- 3 x 500GB HDD
- 2 x 2GB RAM
- ATI Radeon 4670