After WindowsUpdate my XP SP3 laptop, I get a STOP: 0x0000007B error

Everything was running fine on 7.7.2009 on my Lenovo T43 laptop.  I decided to run WindowsUpdate (it's usually disabled) to catch up on recent security updates.  It found 5 or 6, including IE 8 (which I refused).  WindowsUpdate ran without issues (or so I thought) and upon rebooting, I now get a BSOD with the subject STOP error about a second after the Windows splash screen appears.  Won't boot into Safe Mode, nor will Last Known Good Configuration boot.  I did run chkdsk /f from a boot disk -- no errors generated.   Boot.ini looks OK.  FIXBOOT from Restore Console had no positive effect.
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rsmcomputerAsked:
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optomaCommented:
You could try doing a repair install of windows
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rsmcomputerAuthor Commented:
I'd really rather not do an XP repair as it will likely discombobulate my applications.  Right now, I'm backing up the hard drive and will likely do a full, clean install.  That is unless someone comes up with a better idea.
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Milan_OjhCommented:
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rsmcomputerAuthor Commented:
I may have just discovered the cause of the problem, but haven't tried a fix yet: my anti-malware software, Sunbelt Software Vipre, quarrantined "svchost.exe" thinking it was a rogue security trojan.  I have to try a restore using my bootdisk.  Will update this post if it works.
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rsmcomputerAuthor Commented:
Turns out that Vipre WAS the cause of the problem, to my laptop and two other ThinkPad laptops from my clients.  I missed the file name, but got the gist of the issue.  
What happened was due to "false positives" being quarrantined.  Lenovo uses a hard drive shock protection utility, that apparently uses drivers at logon which, when missing, prevent the hard drive from being accessed beyond a certain bootup point.  See the following link for an explanation:  http://supportforums.sunbeltsoftware.com/messageview.aspx?catid=27&threadid=807&enterthread=y
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