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Windows 7: Windows 7 Updates Not installing Error TRUST_E_NOSIGNATURE 0x800b0100

08 Sep 2012   #1

Windows 7 Home Premium x64
Windows 7 Updates Not installing Error TRUST_E_NOSIGNATURE 0x800b0100

Hi, I've been trying to update a PC running Win 7 HP x64 to SP1 and it keeps failing giving me the error in the thread title.

I've done all the standard stuff for this error (ran System Update Readiness Tool etc...) and nothing is fixing it.

I've attached the CheckSUR.log to this post. If someone can please help I would be most grateful.

Attached Files
File Type: log CheckSUR.log (4.7 KB, 10 views)
My System SpecsSystem Spec
08 Sep 2012   #2

32 bit

Windows permissions are screwed up.Reset registry and file permissions

Windows Repair (All In One)
My System SpecsSystem Spec
09 Sep 2012   #3

Microsoft Community Contributor Award Recipient

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

No - there are missing files (which I'm not confident enough to attempt fixing) which are preventing installation. There is nothing wrong with the permissions, as such.
My System SpecsSystem Spec


 Windows 7 Updates Not installing Error TRUST_E_NOSIGNATURE 0x800b0100

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