sfcIT technician command center
Windows CMD · Windows Command Line

sfc

Scan and repair protected Windows system files.

Copy-ready commandsfc
sfc /scannow

Requirements and permissions

Requirements
Windows 10/11 or Windows Server
Permissions
Varies by command
Last reviewed
2026-07-31

Examples

Basic example

Scan and repair protected Windows system files.

sfc /scannow

Common errors

Command not found

Confirm Windows 10/11 or Windows Server is installed and available in your current shell.