Windows 7: Service Pack 1 Error: Trust_E_NOSIGNATURE(0x800b0100)

I have that error when i try to install service pack 1, I already tried with System Update Readiness Tools and doesn't work no way. I unchecked antivirus and firewall too.
I ve attached the checksur.log

Time for a repair install. There are 34 files that are not in the winsxs store.

Do you have the win 7dvd?

After you follow the good advice above & before you try SP1 again refer below.....

Win 7 SP1.
Generic steps to take before installing Windows 7 Service Pack 1.

* How to increase your chances of installing Service Pack 1 successfully.
Steps to follow before you install Windows 7 Service Pack 1 from the Microsoft Download Center

* Update your device drivers to the most recent Windows 7 device drivers from your computer manufacture's support web site (for your specific make and model)

* Start by installing the chipset/motherboard driver followed by the remaining available drivers.

* Run the SFC /SCANNOW command. This will check and repair if necessary any critical Windows system files.
Click on Start/All programs/Accessories then
Right click on Command Prompt option and select 'Run as administrator'.
At the command prompt enter: SFC /SCANNOW

* Run the System Update Readiness Tool:
Description of the System Update Readiness Tool for Windows Vista, for Windows Server 2008, for Windows 7, and for Windows Server 2008 R2

* Also: Steps to take before installing Windows 7 SP1
Steps to follow before you install Windows 7 Service Pack 1 from the Microsoft Download Center

* { I believe} Free unlimited installation and compatibility support is available
for issues related to Windows 7 Service Packs:
Note: Availability of chat, phone or e-mail support differs depending on your geographic location.

* Some issues may require more advanced support for which there may be a charge:
Help and Support

* Windows 7 - Service Pack 1 – How to install Step by Step
Steps to follow before you install Windows 7 Service Pack 1 from the Microsoft Download Center

* Learn how to install Win 7 SP1
Learn how to install Windows 7 Service Pack 1 (SP1)

* Windows 7 SP1: Installation tips
Windows 7 SP1 Follow-up

* Troubleshoot problems installing a service pack for Windows 7
Troubleshoot problems installing Service Pack 1 (SP1) for Windows 7 and Windows Server 2008 R2


FYI -
Windows Server 2008 R2 SP1, Windows 7 SP1 | Download Service Pack

Hello, and welcome to the Seven Forums!

WARNING! This fix was created specifically for this user! If you are not this user, do not follow these instructions!
@demiplate: Ignore the above

Download the attached .zip file. Inside it, will be two folders, Packages and Manifests.

Create these folders if they do not already exist: C:\Windows\Temp\CheckSur\Servicing\Packages\ and C:\Windows\Temp\CheckSur\winsxs\Manifests

Extract Packs.zip onto your Desktop. Please place the contents of my Desktop\Packages in C:\Windows\Temp\CheckSur\Servicing\Packages\ and my Desktop\Manifests in C:\Windows\Temp\CheckSur\winsxs\Manifests.

DO NOT place the .zip file in that folder, or the folders themselves. Make sure that a lot of files are in each of those Checksur folder.

Re-run the System Update Readiness Tool, and get me another copy of C:\Windows\Logs\CBS\CheckSUR.log.

Also, please retest Windows Updates (with fingers slightly crossed, no matter how much we both know that that won't help! lol.)

Thanks a lot!

Richard

Thanks so personalized assistance!, and had given me a headache reading the other options, now I'm at work but as soon as I get home I'll prove it.

It is no problem! I shall be here whenever. The very best of luck!

Richard

Service Pack 2 Installed!!! Thanks a lot! CheckSur found 32 errors and 32 fixed with the packages. Your really was very helpful! Great Forum Nice People

Thanks a lot for letting us know. It has been a pleasure to work with you!

Richard

Hi, I'm having trouble installing SP1 for Windows 7 Professional 64bit as well. I get Error: TRUST_E_NOSIGNATURE(0x800b0100)

Can you help?

I've run several MicrosoftFixit programs & tried various other solutions.

You would be well advised to start YOUR own thread addressing your problem.
That way you receive individual help.
Thank you for your anticipated co-operation.