  UPDATE - I logged onto Recovery Console and did a search for Windows Updates that were installed yesterday.  (Run DIR $* from the C:\Windows directory)  Here are the updates that could be the problem: KB971468 KB975560 KB977165 KB977914 KB978037 KB978251 KB978262 KB978706 Can one of you with the same issue check it out as well so we can compare updates?  I'd like to get to the bottom of this quickly as I'm sure this isn't the only machine I will come across today with this issue.     FIXED! Ok - I uninstalled a few of the updates and now the PC boots just fine.  The update that caused the problem is one of the following 3: KB977165, KB977914, or 978037.  I started with my list above uninstalling groups of 3 at time to narrow it down.  You will need a Windows XP install disc to do this.  Boot off of it and enter Recovery Console.  To uninstall updates from recovery console, do the following: 1. Change directories to the uninstall directory of update in question:  At the C:\windows prompt, type "CD $NtUninstallKB977165$\spuninst" and press Enter. 2. Run in the uninstall script for that update: At the prompt, type "BATCH spuninst.txt" and press Enter.  This executes the txt file as a batch script. I did this for each of the three updates I listed above (changing the KB... portion to match the update I wanted to remove) and the PC boots into Windows with no issue.  Now, off to research the three updates to find out which one broke Windows and why.  Post and let me know if this helped any of you.  
My Windows auto Update ran last night and said it needed to reboot....When it rebooted I now have a BSOD with a STOP error. Error code is as follows Stop 0x0000007E (0xC0000005, 0x7D7FBB28, 0xF789E3E4, 0xF789E0E0)   I cannot go to Last Good Installation... I cannot enter Safe Mode... I would "Like" to restore to a prior restore point. I don't have a bootable install disk.... I can download and burn CD's from another PC if needed.. Any help would be appreciated.... (Running Windows XP Media Center)
Window Update created a STOP Error 0x0000007E...cannot boot.