So I was curious to find out what the difference between sfc and dism scan health and further more what the "The component store is repairable." means. I could not find a clear answer so I did some experiment.
Long story short "The component store is repairable." means there is a system integrity problem.
sfc/ scannow and dism /ScanHealth are not the same, better to run them both.
Here is what I did, I had a windows server that spend more than 1 hour to reboot after monthly patch got applied, so I did SFC scan and DISM scan. DISM scan showed "The component store is repairable." and "The operation completed successfully." <-- this is very misleading. It should be more clearly written like: "The operation completed with error: component store need repairs" I almost ignored it.
Anyhow I ran both dism scan and sfc scan both found problems. After I fixed the issue now the system takes less time to reboot after a patch got applied.
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 and successfully repaired
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:\Users\Administrator>Dism /Online /Cleanup-Image /ScanHealth
Deployment Image Servicing and Management tool
Version: 10.0.14393.4169
Image Version: 10.0.14393.4169
[==========================100.0%==========================] The component store is repairable.
The operation completed successfully.
C:\Users\Administrator>
C:\Users\Administrator>Dism /Online /Cleanup-Image /RestoreHealth /Source:WIM:D:\sources\install.wim:2 /LimitAccess
Deployment Image Servicing and Management tool
Version: 10.0.14393.4169
Image Version: 10.0.14393.4169
[==========================100.0%==========================] The restore operation completed successfully.
The operation completed successfully.
C:\Windows\system32>Dism /Online /Cleanup-Image /ScanHealth
Deployment Image Servicing and Management tool
Version: 10.0.14393.4169
Image Version: 10.0.14393.4169
[==========================100.0%==========================] No component store corruption detected.
The operation completed successfully.
