Windows Server Manager fails to refresh, and the error prompts as shown below:
It is resulted from the disabled server of Windows Modules Installer.
Login the server, click Start -> Run on the bottom left of the desktop, and enter services.msc to open the service.
Find the Windows Modules Installer service and right click to select Start;
Then open Server Manager again and it will be normal.
If your problem still can not solved, please submit open ticket to us.