Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

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

Thread Tools

Similar help and support threads
Thread Forum
800B0100 Windows update error
Trying to fix my moms computer, gets stuck at one update.. error 800b0100 appears my log file didn't upload..I'm not says the zip is 75mb..
Windows Updates & Activation
Error 800b0100 - windows update
When trying to update windows 7, i get the above error and it fails to update 3 files KB2832414, KB2834886, KB285085. I have also tried to download these seperatly but they also fail to install, the windows fixer doesn't solve the problem either, I have tried may thing most of which i cant ,...
Windows Updates & Activation
Windows Update, error 800B0100.
Okay, so I recently reformatted my laptop and it's been doing it's usual updates, but the Windows Update has come across a few updates that keep making it error. Error number 800B0100. I'm using Windows 7, 64 bit. I've tried the Microsoft fix it tool, to no avail. Then I tried the system...
Windows Updates & Activation
Windows Update error 800B0100
Hello. I have the same problem with some updates. Where can I find the files mum, cat and manifest need for my case?. Adjuto CheckSUR. Thank you very much,
Windows Updates & Activation
Windows Update error 800B0100
error wont install 12 updates all kb25xxxxx
Windows Updates & Activation
Windows 7 update error 800B0100 with SP1
I have tried nearly everything I can find to make this update take. Please help. Attached are my log file.
Windows Updates & Activation

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 18:27.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App