Hi folks,
great thread. I experienced the very same problem and it drove me crazy! You know, being at work, knowing your machine at home doesn't work properly, thinking about solutions all the time... :w00t:
My systems specs: C2D 8400, GTS8800, 4GB RAM, ASUS P5B Deluxe (Intel 965P), ICH8R Southbridge, 500 W PSU Seasonic, Vista x64.
Situation / Problems
My Problems began somewhen between 2008-05-01 and 2008-05-19. Don't know what I did, but it was no software install though. It started with games, (CS:S and Supreme Commander), causing a complete freeze. Alt+Tab / Ctrl+Shift+Del took me to a blackscreen first and after minutes (!) left me with the error message "failure - security options: Login process has failed to create the security options dialog". During all the time I had control over the mouse, it was movable, but keystrokes had absolutely no effects so I couldn't do anything about it.
Only way out was a hard reset, means: power off, power on. Soft-resetz didn't work out. Lateron, it happened more oftenly and right away from the desktop, mostly 3-5 times a day and oftenly 3-5 minutes after booting. It seemed to me to occur randomly while using different tools such as firefox, itunes, mediaplayer, outlook, word, excel...
Countermeasures taken:
What came to my mind was a defective hard drive, because the activity led was deep red all the time with no single flicker. So I changed my HDD and cloned it onto another drive - with no effect at all, same error.
I disabled -one by one-:
*
the vista indexing services,
* uninstalled my "lookeen"-Tool (which is an outlook-indexing addon),
* disabled the defrag service,
* disabled the sidebar
* uninstalled Acronis TrueImage
due to bootloader modifications it has made to vista and
due to volume handling errors --> Disabling all Acronis Services via msconfig.exe seems to do the job, too, for some ppl (
1,
2)
* restored the MBR via FIXMBR C:; FIXBOOT C:; BOOTCFG /rebuild
* uninstalled NVIDIA ForceWare / Rollback to 169.x-Versions (last WHQL from 12/2007)
* NVIDA ForceWare related Tools (in my case: RivaTuner 2.09)
* uninstalled X-Fi Drivers / reinstalled new 2.18 beta drivers
*
rebuilt the WMI-Repsoitory
*
Uninstalled the Apple Bonjour Tool
All with absolutely no effect on the matter.
Possible culprits
Afterwards I used the windows protocols to identify the culprit. I ended up with
* BitDefender 2008 AntiVirus (bdfsfltr.sys caused errors continously)
* Java 1.6.0 Update 6 (java.exe oftenly hung itself up and smoothly changed into "our" error)
* Windows Defender (which is a crappy tool all the way from head to toes anyways)
* Comodo Firewall Pro (which caused several kernel log entries)
After reading this thread, it seems to be the AV-solution, no matter which product you're using.
Possible solutions
What I'll do next:
1)
deactivate Windows defender, this sh** tool which I would love to cut out of vista and stick it into some M$ managing a**. (sorry for offensive wording

)
2) I'll stress test the system and see if our error occurs again.
3) If error does NOT occur anymore, I'll reinstall the tools mentioned above one by one to see if one of them causes the failure.
See you all, m8s, hope thi