I tried the three steps but no luck:
C:\Windows\system32>sfc /scannow
Beginning system scan. This process will take some time.
Beginning verification phase of system scan.
Verification 100% complete.
Windows Resource Protection found corrupt files but was unable to fix some
of them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For
example C:\Windows\Logs\CBS\CBS.log. Note that logging is currently not
supported in offline servicing scenarios.
C:\Windows\system32>dism /online /cleanup-image /restorehealth
Deployment Image Servicing and Management tool
Version: 10.0.14393.4169
Image Version: 10.0.14393.4169
[==========================100.0%==========================]
Error: 0x800f081f
The source files could not be found.
Use the "Source" option to specify the location of the files that are required to restore the feature. For more information on specifying a source location, see http://go.microsoft.com/fwlink/?LinkId=243077.
The DISM log file can be found at C:\Windows\Logs\DISM\dism.log
I followed the weblink and restarted the server. After it restarted, the Essential dashboard stalled and could not use vpn connection to remote into the server. I had to repair VPNanywhere to get it to work.
It is still stuck at the part: