Windows Update command line options:
http://technet.microsoft.com/en-us/library/cc720477(v=WS.10).aspx
Read on for all command line options
I’ve noticed these EventID:122 errors appearing on my Windows Server 2012 Hyper-V host. Its running in a workgroup and has registry settings defined to connect to my WSUS server.
Source: DeviceSetupManager
EventID: 122
Message: Access to drivers on Windows Update was blocked by policy
The only reference I can find is from here:
where it says only:
Event ID: 122 Warning: DriverInstallBlockedByWUPolicy.
Driver install failed because of WU opt-in policy. Users or group policy opt-out the WU driver download.
- Message: Access to drivers on Windows Update was blocked by policy
but no other mention of *what* policy that refers to.