I'd like to automatically install Windows server updates (backed by WSUS), but can't seem to get
wuauclt /updatenow to actually initiate an install (or any of the other undocumented switches).
It works on a test workstation, but I believe that's because installation is set to Automatic Every Day while the server is set to Detect Only. I'm planning on using another, more robust 3rd party scheduler to install updates on certain days of the week, but also weeks of the month. i.e. Server A gets install on the first Sunday of the month, Server B, the second Sunday of the month, etc.
Basically I'm looking for a scriptable equivalent of clicking the "Install Updates" button on the Windows Update GUI dialog on the server.