November 11, 2026

Windows 10 Disk Cleanup Stuck on Windows Update Cleanup: What to Do When the Progress Bar Stops Moving

You run Disk Cleanup with “Clean up system files,” tick Windows Update Cleanup, and select OK. The progress window appears, reaches “Windows Update Cleanup,” and then sits there for an hour with no visible progress. When Windows 10 Disk Cleanup stuck on Windows Update Cleanup tests your patience, the tool is usually still working rather than frozen.

Windows Update Cleanup removes old versions of system components that newer updates replaced. To do that safely, Windows checks each component in the component store, called WinSxS, before removing it. On a PC with years of updates, that check can take a very long time, especially on a hard drive rather than an SSD.

The bar may not move during this stage, which makes slot the process look stuck.

If it truly does not finish, a component store repair or a command-line cleanup usually succeeds.

Why This Happens

This stage appears stuck for these reasons:

• Many superseded updates must be checked and removed.
• The PC uses a slow hard drive.
• The component store is damaged, so cleanup cannot finish.
• Windows Update or another maintenance task is running at the same time.

Some of the cleanup is also completed during the next restart, which is why the space may only be freed after rebooting.

Start With These Basic Checks

Give it time and check activity.

1. Leave Disk Cleanup running for at least one to two hours on a hard drive.
2. Open Task Manager and look at the Disk and CPU columns for “Windows Modules Installer” or “cleanmgr.”
3. If either shows activity, the process is still working.
4. Plug in laptops so they do not sleep or switch to battery saver.
5. Restart the PC after Disk Cleanup finishes to complete the removal.

If there has been no disk or CPU activity for an hour, close Disk Cleanup and restart.

Going a Step Further

Clean the component store with DISM.

1. Open Command Prompt as administrator.
2. Type DISM /Online /Cleanup-Image /AnalyzeComponentStore and press Enter to see whether cleanup is recommended.
3. Type DISM /Online /Cleanup-Image /StartComponentCleanup and press Enter.
4. If DISM reports corruption, run DISM /Online /Cleanup-Image /RestoreHealth first.
5. Run Disk Cleanup again afterwards.

Avoid the /ResetBase option unless you are sure you will never need to uninstall current updates.

A Word of Caution

Do not force the PC off while Disk Cleanup is removing update files, since an interrupted cleanup can damage the component store. Never delete files from the WinSxS folder by hand.

Final Thoughts

Windows Update Cleanup is often slow rather than stuck. Watch Task Manager, allow time, restart afterwards, and use DISM’s component cleanup if the tool truly cannot finish.