My WSUS installation is now using 100 Gb of disk.

Is there a way to reduce this usage? How can I, say, delete updates included in Service Packs?


2 Answers 2


You can go to Options > Server Cleanup Wizard, in the WSUS window, and clean up unused updates and update revisions, computers not contacting the server, uneeded update files, expired updates, and superseded updates. I do this approx. once a week, sometimes a little less frequently.

WSUS Server Cleanup Wizard

  • This dialog never finishes. I let it run for several days and the cleaning never came to end.
    – motobói
    Dec 17, 2014 at 11:13
  • Great walk-through... Saved me about 70% of wasted space by WSUS. WSUS should handle the superseded files automatically, this is a huge miss by Microsoft again... This company is getting consistently worse each year: product evolution, quality, support, design, cloud obsessed... Thank you for taking the time to share this article.
    – James
    Apr 17, 2020 at 19:45

I have found another quite effective approach.

Go All Updates folder, and set:

  • Approved on Approval field
  • Any on status field

Then right click on column titles and check Supersencence. A new column 2 will appear. Use it to sort all your approved items.

Select all superseded items (they are grouped by 2 different icons), and decline them.

Then go in Options->Server cleanup wizard and set only Unneeded update files

Run it.

NOTE: This 'brutal' approach saved a choking server by reducing the disk usage (about 50%).

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.