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Windows 7: Windows Update error 800b0100

28 Mar 2015   #1

windows 7 64bit
Windows Update error 800b0100

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,


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

Attached Files
File Type: log CheckSUR.log (393 Bytes, 4 views)
My System SpecsSystem Spec
29 Mar 2015   #2

windows 7 64bit

19 new updates installed. but the 16 problematic ones remain. ie 19/35 successful updates
My System SpecsSystem Spec
30 Mar 2015   #3

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10

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 \\?\C:\Windows\SoftwareDistribution\Download\659b597b28448d70286356817fa8a2c4\ 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~~, from path: \\?\C:\Windows\SoftwareDistribution\Download\659b597b28448d70286356817fa8a2c4\Package_29_for_KB2978120~31bf3856ad364e35~amd64~~, 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~~ [HRESULT = 0x800b0100 - TRUST_E_NOSIGNATURE]
Probably best to reset Windows updates completely...

Windows Update - Reset
My System SpecsSystem Spec


 Windows Update error 800b0100

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