Vista Update not working. Error 800B0100.

[jlauriale]

Hello

My vista home premium 64, service pack 1, cannot be updated.

I tried to do all the advices that I was able to find in the differents forums and in the Microsoft Knowledge Database.

* I uninstalled my antivirus and firewall security software, rebooted my systems, no success...

* I deleted the content of C:\Windows\SoftwareDistribution\Download, rebooted my systems, nothing...

* I donwloaded, installed and run the System Update Readiness Tool for Windows Vista 64-bit. It ended ok, but still I couldn't update my system

* I donwloaded Vista Service Pack 2, and I tried to install it directly from it, no sucess...

* I found this solution in the forums:
net stop cryptsvc
ren %systemroot%\system32\catroot2 oldcatroot2
net start cryptsvc
It didn't work

* I tried to do also this, opening a command line window as administrator:
regsvr32 wintrust.dll /s
also this
sfc /scannow
no errors, doesn't work

Please, can you help me?

Best regards

[Raiz]

Refer to following similar error threads for better suggestions:

Vista Windows Update error 800B0100 solution.
http://forums.techarena.in/windows-update/812668.htm
http://forums.techarena.in/windows-update/812668.htm
vista error 800b0100
http://forums.techarena.in/windows-update/800532.htm

Hope this will help.

[Maq.H]

Error 800B0100 is the cause of firewall. If you are using any Firewall vendor like McAfee Personal Firewall Plus, F-Secure Internet Security, Norton Internet Security disable it. If you are facing any problem to do so than visit their respective support page for assistance in disabling it.