How can I tell if my Windows server is up to date?

Open Windows Update by clicking the Start button in the lower left corner. In the search box, type Update, and then, in the list of results, click either Windows Update or Check for updates. Click the Check for updates button and then wait while Windows looks for the latest updates for your computer.

What is the default Windows Update server?

The default HTTP port for WSUS is 8530, and the default HTTP over Secure Sockets Layer (HTTPS) port is 8531. … As Windows clients refresh their computer policies (the default Group Policy refresh setting is 90 minutes and when a computer restarts), computers start to appear in WSUS.