How to Use Disk Cleanup to Free Up Space in Windows

LAST UPDATED: JAN 22, 2025

ESTIMATED READING TIME: 2 minutes

Disk Cleanup clears out unnecessary files, giving your computer a performance boost and freeing up space.

Boost Your PC Speed with Disk Cleanup

1. On your keyboard, press the Windows ⊞ and R keys at the same time to open the Run window.
2. Type cleanmgr, then press ENTER. The Disk Cleanup window should appear.
3. Select the drive you want to clean, then click OK.
4. Check the boxes for the file types that you want to delete, and then click OK.
5. Need more space? You can also click the Clean up system files button to remove extra Windows files.
6. In the message that appears, click Delete files.

How often should I run Disk Cleanup to keep my computer running smoothly?

Running Disk Cleanup once every few months or when you notice your computer slowing down due to storage issues.

Is there a risk of deleting something important while cleaning up files?

Disk Cleanup is designed to target files that are safe to delete and won't harm your system. However, it's always a good practice to review the selected file types before confirming the cleanup to ensure you don't inadvertently delete something important.

Will running Disk Cleanup delete any of my installed programs?

No, Disk Cleanup will not delete your installed programs or applications. It primarily targets temporary and unnecessary files.

Can I reverse the changes if I accidentally delete something I need?

Generally, once you confirm and complete the cleanup, the files are deleted permanently. To prevent accidental deletions, review the selected file types carefully before proceeding.