Run Disk Cleanup on a Windows Computer

The Disk Cleanup utility comes installed on Windows. It removes unnecessary files to free up space on a disk drive on your computer.


  • To delete temporary files:
    1. Search for Disk cleanup from the taskbar and select it from the list of results.
    2. Under Files to delete, select the file types to get rid of. To get a description of the file type, select it.
    3. Select OK.
  • If you need to free up more space, you can also delete system files:
    1. In Disk cleanup, select Clean up system files.
    2. Select the file types to get rid of. To get a description of the file type, select it.
    3. Select OK.
  1. Right-click the Start button.
  2. Click Control Panel > Administrative Tools > Disk Cleanup.
  3. If you see a drop-down menu with a list of drives, choose the drive you want to clean (generally the C drive).
  4. Click OK.
  5. In the Disk Cleanup for OS dialog box, choose the checkboxes for the file types you want to delete.

    disk cleanup files

  6. Click OK.
  7. When you see a dialog box that prompts you whether to permanently delete the files, click Delete Files.
  8. The Disk Cleanup utility will close automatically when it is done.
  1. Click Start.
  2. Click All Programs > Accessories > System Tools > Disk Cleanup.
  3. From the drop-down menu, choose the drive you want to clean.
  4. Click OK.
  5. Disk Cleanup will calculate the free space on your computer, which may take a few minutes.
  6. After the calculation is complete, you should see a dialog box that lists file types.
  7. Confirm that only the following check boxes are checked:
    • Downloaded Program Files
    • Temporary Internet Files
    • Recycle Bin
    • Temporary Files
  8. Click OK.
  9. When you see a dialog box that asks Are you sure you want to permanently delete these files? 
  10. Click Delete Files.
  11. Disk Cleanup will delete the files and close automatically.

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