Administrators using Windows Server Update Services (WSUS) to update devices must now use a new process to get those updates into its database. Microsoft says that this is because the old method used ActiveX, which is now deprecated.
The new method involves running a Powershell script, which will be offered, along with documentation on the process, when users access their usual Import Updates function in the WSUS server admin UI. You’ll find full details of the change on the WSUS and the Microsoft Update Catalog page.