Windows Error Logs (Possibly Skype-related)

Unexpected or missing value (name: 'PackageName', value: '') in key 'HKLM\Software\Classes\Installer\Products\D139E7FE48CDB174D86B8A3385904547\SourceList'

Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallbackinterface.
hr = 0x80070005, Access is denied. This is often caused by incorrect security settings in either the writer or requestor process.Operation:

Gathering Writer DataContext:
Writer Class Id: {e8132975-6f93-4464-a53e-1050253ae220}
Writer Name: System Writer
Writer Instance ID: {10b44072-a6e1-4962-8dfa-f519b92236b3}