Disk Cleanup

Microsoft Windows Disk CleanupDisk Cleanup is a Microsoft software utility first introduced with Windows 98 and included in all subsequent releases of Windows. It allows users to remove files that are no longer needed or that can be safely deleted.

As can be seen in the picture, Disk Cleanup can delete Temporary Internet Files (associated with Internet Explorer), old downloaded program files, empty the Recycle Bin, and delete Temporary Files. New versions of Disk Cleanup (e.g. Windows XP and later) allow you to delete Offline Webpages, Temporary Files, WebClient/Publisher Temporary Files, Compress old files, and Catalog files for the Content Indexer.

How to open Microsoft Disk Cleanup

Microsoft Disk Cleanup can be opened by following one of the below methods.

  1. Start
  2. Programs, Accessories, System Tools
  3. In System Tools click Disk Cleanup


  1. Start, Run
  2. In the Run line, type cleanmgr


  1. Open My Computer
  2. Right-click the drive you want to run Disk Cleanup on (e.g. C: drive)
  3. Click the Disk Cleanup button.

What to do in Disk Cleanup

Once Disk Cleanup is open check each of the boxes you want to run. To the right of each option is the disk drive space each of the items are taking on your hard drive.

Note: We highly recommend that users DO NOT check the option to Compress old files (if seen). Often this option causes more issues than the small amount of space it recovers is worth.

Once each of the boxes has been checked, click Ok to start the cleanup process.

Related pages

Also see: Utility