Server Manager on Windows Server 2008 or Windows Sever 2008 R2 may not be able to view Roles and Features after a Windows update. Did a Google search and chanced upon an article on Microsoft Knowledge base.
The cause of this issue is said to be due to some catalog files, manifest files or MUM files being corrupted on the computer. To resolve, you will need to download and run Microsoft Update Readiness Tool, run it, check %Systemroot%\Windows\logs\CBS\Checksur.log for corrupt information after the scan is completed, then replace corrupted package(s) that remains unfixed.
Read in details on Microsoft KB.
The cause of this issue is said to be due to some catalog files, manifest files or MUM files being corrupted on the computer. To resolve, you will need to download and run Microsoft Update Readiness Tool, run it, check %Systemroot%\Windows\logs\CBS\Checksur.log for corrupt information after the scan is completed, then replace corrupted package(s) that remains unfixed.
Read in details on Microsoft KB.