Windows Vista Update Troubleshooting

January 19th, 2010 12:58 PM ∙ Dibbs

Long story short, I’ve never had the time to really go back through and clean this post up. Although if you’re having problems with updating windows vista this collection of links and resources/tools can really be helpful I think, so I’ve decided to post as is and then let comments and time shape the post.

Helpful Links for Troubleshooting

Microsoft Update Solution Center – http://support.microsoft.com/gp/wupd

Free support for home users with windows update issues

Windows Genuine Advantage Diagnostics – http://www.microsoft.com/genuine/diag/

Make sure that WGA is not preventing you from updating

Tips to Try

If you utilize a forum for help, it always helps to give your exact operating system version

Start->Run

Winver

Check %windir%\WindowsUpdate.log for errors

Disable firewall/antivirus
File Integrity Check – SFC /scannow

http://support.microsoft.com/kb/931712

Reinstall Windows Update Agent (http://go.microsoft.com/fwlink/?LinkID=91237)

WindowsUpdateAgent-Version#.exe /wuforce from command line

regsvr32 %windir%\system32\wups2.dll

Check Windows Update Related Services

Start->Run

Services.msc

Cryptographic

Windows Module Installer

Windows Update

Secure Sockets Tunnel

Actual Error Message I Received

“Error #: 0×80070026″ in Windows Update GUI

“FATAL: EvaluateApplicability failed in CCbs::EvaluateApplicability” in WindowsUpdate.log

Steps to Correct Issue

CheckSUR Utility – http://thebackroomtech.com/2008/04/07/using-checksur-to-repair-windows-vista-update-problems/

Check the log files it generates for Unavailable repair files

%systemroot%\logs\cbs\checksur.log

%systemroot%\logs\cbs\checksur.persist.log

For our issue

Unavailable repair files:

servicing\packages\WUClient-SelfUpdate-Core-CoreComp~31bf3856ad364e35~x86~~7.4.7600.226.mum

servicing\packages\WUClient-SelfUpdate-Core-UIComp~31bf3856ad364e35~x86~~7.4.7600.226.mum

servicing\packages\WUClient-SelfUpdate-Core-CoreComp~31bf3856ad364e35~x86~~7.4.7600.226.cat

servicing\packages\WUClient-SelfUpdate-Core-UIComp~31bf3856ad364e35~x86~~7.4.7600.226.cat

takeown /F packages /R /A

icacls pacakages /grant Administrators:F

Copy missing .mum/.cat files from a working machine to the C:\Windows\Servicing\Packages folder on the damaged machine or request online

IF THAT DOESNT WORK – Last Resort

Flush software distribution history

Stop BITS and Automatic Updates services from services.msc

delete all files in C:\Windows\SoftwareDistribution

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