|13 Sep 2011||#1|
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Vid driver fails to initialize (0x0..B4) after updates
Rebooted my computer the other day and let 15 windows updates install as I was headed to bed. Next morning, I get a boot loop. I stopped the reboot and got a "Video Driver failed to initialize" BSOD. Error is 0x000000B4 (0xFFFFFA8007698010, 0xFFFFFA800769A000, 0xFFFFFA800769D000, 0x0000000000000003).
Last known good config and safe mode both hang at classpnp.sys then reboot. I tried running repair multiple times, unplugging all usb devices (except mouse- don't have a ps2 anymore), to no avail.
This install was a fresh install of Windows 7 Ultimate x64 I bought from school (Volume Lic agreement, not retail) on a system I built two years ago (specs in profile). I have a restore image from shortly after install that I could revert to, but would probably be better off with a fresh install. However, I'd like to avoid that for time and configuration reasons. If it is a driver problem, is there a way to reinstall from the command line? I'm pretty sure I have some recent drivers already downloaded.
I realize this could just be a coincidence and my video card is bad now, but I can't believe the updates didn't goof something up. You would think I could still boot in safe mode though...
Also, the posting instructions don't specify if your tool works (or would be useful) from the command line. Is it?
|My System Specs|
|13 Sep 2011||#2|
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Update: I ran the repair utility again, and got into the details and noted everything passed except for:
Root Cause Found:
Unspecified changes to system configuration might have caused the problem.
Repair action: System files integrity check and repair
Result: Failed. Error code = 0xa
In two other places is says it couldn't find the root cause of the problem.
I ran sfc /scannow and it said other repairs were pending and to reboot and run again. I did, and it said the same thing.
Aside from copying classpnp.sys from the wife's laptop, any other ideas to try?
|My System Specs|
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