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Windows 7: Windows Update error code 800B0100


04 Jul 2010   #1

Windows 7 Ultimate 32 bit
 
 
Windows Update error code 800B0100

Suddenly yesterday Windows update starting returning an error each time I tried to install updates. The updates are being downloaded ok but when I select install I get the following:

Code 800B0100 Windows update encountered an unknown error

I have researched this but the information I found related to "compatability check" software which I guess relates to earlier Windows versions and compatability with Windows 7.

I have also tried the download/install with security switched off, this made no difference either.

Has anyone got an idea where I should go from here?

Thanks in advance.

Mervyn

My System SpecsSystem Spec
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04 Jul 2010   #2

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

Hello,

Try the following one by one, checking after each.

1) Disable your firewall.

2) Navigate to the folder C:\windows\softwaredistribution and rename it to something like softdis.old.

3) Download the installer manually from windows download center to your hdd. Then restart in safe mode and install the update by double clicking on the saved file. Restart.

4) Windows Update - Reset

5) Try the MS Fixit.

How do I reset Windows Update components?
My System SpecsSystem Spec
04 Jul 2010   #3

Windows 7 Pro. 64/SP-1
 
 

Just a added thought. Can you download and install updates for other security programs such as ant-ivirus, anti-malware, anti-spyware. If you can there probably isn't a virus ect causing the problem because they would shut down these update also.
My System SpecsSystem Spec
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07 Jul 2010   #4

Windows 7 Ultimate 32 bit
 
 
Success!

Thanks Bill2 for your suggestions I worked down the list without success until I got to the MS fixit option.

Although I was unable to run the Fixit utility, each time I tried to start it, the system stuttered to a halt and I had to reboot, so I moved down to the BITS and update .dll list and re-registered them (excluding a few that were not recognised). Once I rebooted the indows update list was cleared and when I checked for updates I was presented with the 2 that had failed before. Eureka! They updated ok.

My System SpecsSystem Spec
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 Windows Update error code 800B0100




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