2014-04-20 15:04:45, Info CBS Session: 30366923_1693595580 initialized by client WindowsUpdateAgent.
2014-04-20 15:04:45, Info CBS Opened cabinet package, package directory: C:\Windows\SoftwareDistribution\Download\2d17cc118500ee67db6c6975480747da\, sandbox location: \\?\C:\Windows\SoftwareDistribution\Download\2d17cc118500ee67db6c6975480747da\, cabinet location: \\?\C:\Windows\SoftwareDistribution\Download\2d17cc118500ee67db6c6975480747da\windows6.1-kb2872339-x64-express.cab, manifest location: \\?\C:\Windows\SoftwareDistribution\Download\2d17cc118500ee67db6c6975480747da\update.mum
2014-04-20 15:04:45, Info CBS WinVerifyTrust failed [HRESULT = 0x800b0100 - TRUST_E_NOSIGNATURE]
2014-04-20 15:04:45, Error CBS Failed to verify if catalog file \\?\C:\Windows\SoftwareDistribution\Download\2d17cc118500ee67db6c6975480747da\update.cat is valid. [HRESULT = 0x800b0100 - TRUST_E_NOSIGNATURE]
2014-04-20 15:04:45, Info CBS Failed to initialize internal package [HRESULT = 0x800b0100 - TRUST_E_NOSIGNATURE]
2014-04-20 15:04:45, Error CBS Failed to create internal package [HRESULT = 0x800b0100 - TRUST_E_NOSIGNATURE]