Windows Update error 800b0100

[bopchongs]

Hi i am having problem with installing updates, it seems to be about 16 that i have tried individually. Error i get is 800b0100. I have run system update readiness tooland sfc /scannow. Attached is my checksur.log, the cbs.log is 139mb and i can not upload it, shall i copy and paste it in this post. Please let me know of any other information you may need.



Kind Regards,

Bop

EDIT: Attached is now also a CBS.log which is taken from pre- sfc scan - the file is too large to upload after scan.

 

[bopchongs]

19 new updates installed. but the 16 problematic ones remain. ie 19/35 successful updates

 

[NoelDP]

Looks like you may have some corruption in the SoftwareDistribution folder...

2015-03-29 01:22:54, Error                 CBS    Failed to verify if catalog file [URL="file://\\?\C:\Windows\SoftwareDistribution\Download\659b597b28448d70286356817fa8a2c4\Package_29_for_KB2978120~31bf3856ad364e35~amd64~~6.1.1.0.cat"]\\?\C:\Windows\SoftwareDistribution\Download\659b597b28448d70286356817fa8a2c4\Package_29_for_KB2978120~31bf3856ad364e35~amd64~~6.1.1.0.cat[/URL] is valid. [HRESULT = 0x800b0100 - TRUST_E_NOSIGNATURE]
2015-03-29 01:22:54, Info                  CBS    Failed to initialize package: Package_29_for_KB2978120~31bf3856ad364e35~amd64~~6.1.1.0, from path: [URL="file://\\?\C:\Windows\SoftwareDistribution\Download\659b597b28448d70286356817fa8a2c4\Package_29_for_KB2978120~31bf3856ad364e35~amd64~~6.1.1.0.mum"]\\?\C:\Windows\SoftwareDistribution\Download\659b597b28448d70286356817fa8a2c4\Package_29_for_KB2978120~31bf3856ad364e35~amd64~~6.1.1.0.mum[/URL], existing package: 0 [HRESULT = 0x800b0100 - TRUST_E_NOSIGNATURE]
2015-03-29 01:22:54, Error                 CBS    Failed to resolve child of Package: Package_for_KB2978120_SP1~31bf3856ad364e35~amd64~~6.1.1.0 [HRESULT = 0x800b0100 - TRUST_E_NOSIGNATURE]

Probably best to reset Windows updates completely...

http://www.sevenforums.com/tutorials/91738-windows-update-reset.html