This threads tells you how using Dism is the same as using SFC

I am trying to use dism/online/cleanup-image/restorehealth tool in an elevated command prompt to fix corrupt files that sfc/scannow is unable to repair. I keep getting this error message below:

Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>dism/online/cleanup-image/restorehealth
Deployment Image Servicing and Management tool
Version: 6.2.9200.16384

Error: 87
The online/cleanup-image/restorehealth option is unknown.
For more information, refer to the help by running DISM.exe /?.
The DISM log file can be found at C:\WINDOWS\Logs\DISM\dism.log

Solution

No worries. You are just entering the command incorrectly. It should be this below with the spaces instead:

Dism /Online /Cleanup-Image /RestoreHealth