Here is the next screencast in my series covering System Center Updates Publisher 2011. This screencast gives you a in-depth look at How to Cleanup Software Updates. Enjoy!
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If the signing cert is changed and the trust is lost... what are the manual steps to remove the remaining custom updates? That is if it is still possibility?
You would have to manually re-create the update discribed here: blogs.technet.com/.../how-to-remove-orphaned-scup-updates.aspx
I also changed the cert without expiring the updates, also I deleted them from SCUP 2011 console. Now with new cert I am not able to deploy those updates. When I am trying to publish them with new cert it throwing certificate conflict error.
You can resign those updates still in WSUS, if you can get them back into SCUP.