Windows 7
Failed extract of third-party root list from auto update cab at: <http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab> with error: The data is invalid.
Source: CAPI2
Event ID: 4107
Windows Update was not working either with all services like BITS and WU running fine. I realized the error message after manual download of the cab file attempt: network error. Reboot the main fw, all routers, etc. It helped. i was able to install cab file manually. Windows Update started working correctly.