Win7 x86 on Virtual PC SP1 Error - TRUST_E_NOSIGNATURE(0x800b0100)

NoelDP · 21 Jan 2013

Great - now please run another SFC /SCANNOW and post the CBS log - correcting the manifests may change the results.

morbia · 21 Jan 2013

SFC /SCANNOW finds no error and see attached CBS logs.

Thanks again.

NoelDP · 21 Jan 2013

There;s a couple of minor errors in the SoftwareDistribution folder -

Code:

 Line 505: 2013-01-21 21:58:32, Error                 CBS    Failed to verify if catalog file \\?\C:\Windows\SoftwareDistribution\Download\81e30664749127d4842fd5cce29ad467\update.cat is valid. [HRESULT = 0x800b0100 - TRUST_E_NOSIGNATURE]
 Line 3295: 2013-01-21 22:06:33, Error                 CBS    Failed to verify if catalog file \\?\C:\Windows\SoftwareDistribution\Download\65acc9d714229a053d74cf2446d2a6f0\update.cat is valid. [HRESULT = 0x800b0100 - TRUST_E_NOSIGNATURE]

I'd try installing SP1 offline, now - download it from here... Download Windows 7 and Windows Server 2008 R2 Service Pack 1 (KB976932) from Official Microsoft Download Center

It should clear the SD folder anyhow as it installs.

morbia · 22 Jan 2013

Hi Noel,

SP1 was already installed successfully with last fix you had provided but two critical updates were failing with error you have mentioned in SoftwareDistribution folder.

I deleted all content from SoftwareDistribution folder and rechecked for updates then I was able to install those updates too.

Thanks for your help.

Kind Regards
morbia

NoelDP · 22 Jan 2013

Ah - a Result!
Great:) - thanks for the extra detail.

Good luck!