It's worth noting that even though the System File Checker is designed to be a standalone tool, Microsoft recommends that you first run the Deployment Image Servicing and Management (DISM) tool if ...

The system file checker can, and should, also be run after clearing out a malware infection to potentially help repair some of the damage done – assuming nuke and repave is not the better option ...

SFC (System File Checker) SFC checks for missing important files of your Windows operating system and restores them from the cache. CHKDSK (Check Disk) ...

5. Run System File Checker (SFC) and Deployment Image Servicing and Management (DISM) Scans System file corruption can sometimes affect font rendering.