Core Windows ServicesLow Risk

Repair Component Store (DISM)

Repair Component Store (DISM) fixes corruption in the Windows Side-by-Side (WinSxS) component store, which is the foundation for Windows servicing. It runs the full DISM repair pipeline: CheckHealth for quick status, ScanHealth for thorough corruption detection, and RestoreHealth to download and replace corrupted components from Windows Update. It also performs component store cleanup to remove superseded packages and reclaim disk space. A healthy component store is required for Windows Update, optional features, .NET Framework, and SFC to function. This repair resolves DISM errors 0x800F081F, 0x80073712, and component store corruption messages. Takes about 5-15 minutes depending on the corruption level.

📖

Main Troubleshooting Guide

How to Fix Windows Update Errors →

Complete symptoms, causes, and step-by-step solutions

20 min

Estimated Time

low

Risk Level

Restart Needed

Fix All Safe

Fix This Automatically

RescuePC runs "Repair Component Store (DISM)" with one click — no technical knowledge needed.

Download RescuePC Free Download

Common Symptoms

⚠DISM reporting "component store corruption" errors
⚠Windows Update failing with error 0x800F081F or 0x80073712
⚠SFC /scannow finding corrupt files it cannot repair
⚠Optional Windows features failing to install
⚠Disk space consumed by WinSxS folder growing excessively
⚠.NET Framework installation or repair failing

How to Fix

1
Check component store health: Admin CMD > DISM /Online /Cleanup-Image /CheckHealth
2
Scan for corruption: DISM /Online /Cleanup-Image /ScanHealth (takes 5-15 minutes)
3
Repair corruption: DISM /Online /Cleanup-Image /RestoreHealth (requires internet)
4
If RestoreHealth fails: specify a Windows ISO as source > DISM /Online /Cleanup-Image /RestoreHealth /Source:D:\Sources\install.wim
5
Clean up old components: DISM /Online /Cleanup-Image /StartComponentCleanup /ResetBase
6
After DISM repair: run sfc /scannow to verify system files are now fixable
7
Or run RescuePC's Repair Component Store which runs the full DISM pipeline with automatic error recovery

What This Repair Actually Runs

Extracted from repair_component_store.ps1 — the signed script this repair executes. This is the real work it performs on your PC, not a marketing summary.

dism /Online /Cleanup-Image /CheckHealth

dism /Online /Cleanup-Image /RestoreHealth

Every run writes a timestamped log you can review or attach to a ticket. Safety class and Fix All eligibility are enforced by the signed pack manifest (SOP-76).

Frequently Asked Questions

What does "Repair Component Store (DISM)" do?▼

Runs DISM RestoreHealth to repair Windows component store. It is a one-click repair in the Core Windows Services category that automates the fix so you don't need technical expertise.

Is "Repair Component Store (DISM)" safe to run?▼

Yes — this is a low-risk repair. It makes non-destructive changes and does not require a restore point.

How long does "Repair Component Store (DISM)" take?▼

Typically about 20 minutes. No restart is needed.

Can I run "Repair Component Store (DISM)" automatically with Fix All?▼

This repair is not part of the Fix All chain because it may need user input or takes longer than typical automated repairs. Run it individually from the Core tab.

Do I need administrator access to run "Repair Component Store (DISM)"?▼

Yes — this repair requires administrator privileges because it modifies system-level settings. RescuePC will prompt for elevation via UAC.