Those two IE8 patches from Windows Update seemed to really kill my system. I don't even use IE.
I installed the patch, restarted, and my computer would not boot. Random services / processes would crash followed by WerFault crashing... I went into safe mode and system a system restore, and I thought all was good.
But now, I have to continually choose to use last known good configuration from the boot options to get into windows. If I don't, it'll proceed to crash. Is there any way to make windows use the LKGC as my current config??