Hi Baron164,
Please check this post
And carefully check certificate settings.
2013-09-09 13:29:02:233 860 e6c Misc Validating signature for C:\Windows\SoftwareDistribution\Download\8e096547df601e727a709d83d0007c4f\575aa75ff425bd90598b449f887b582697a327de:Another problem with Certificate.
2013-09-09 13:29:02:389 860 e6c Misc Microsoft signed: No
2013-09-09 13:29:02:389 860 e6c Misc WARNING: Digital Signatures on file C:\Windows\SoftwareDistribution\Download\8e096547df601e727a709d83d0007c4f\575aa75ff425bd90598b449f887b582697a327de are not trusted: Error 0x800b0109
Please check this post
And carefully check certificate settings.