Guides
SFC vs DISM
SFC and DISM are often mentioned together, but they solve different layers of Windows repair. SFC checks and replaces protected system files. DISM checks and repairs the Windows component store that SFC depends on.
What SFC repairs
SFC focuses on protected system files inside the active Windows installation. It is usually the simpler first step when Windows features, built-in tools, or core files appear damaged.
What DISM repairs
DISM focuses on the servicing store and the broader Windows image health. If the component store is damaged, SFC can fail to complete its own repair because its source material is already compromised.
Which one to run first
A practical order is often SFC first for straightforward file integrity checks, then DISM when SFC reports corruption it cannot repair, or when Windows Update and servicing errors suggest deeper image damage.