delete orphaned computers from SCOM

after renaming a Active Directory computer, the computer was automatically detected in SCOM with the correct new name. but after short time, I detected, that the originally agent was already there, but not reachable. so I deleted the old computer under Device Management – Agent Managed.

normally after maximum 3 days, the agent isn’t visible in the computer view. the delay of 3 days is by design. so don’t delete the computer manually to early.

If you still see the Computer showing up – even after 3 days – then in most cases, there is still a discovery associated with it. To find the discovery, use this query:

in my case, I didn’t found any discovery for this computer and it was still available in the Windows Computer view one week after deletion of the agent.

so I found a solution

***THE FOLLOWING PROCEDURE IS NOT SUPPORTED BY MICROSOFT***

we need to check the database with this query for the orphaned entities:

now we will mark this old entries as deleted:

after this, make a refresh in your SCOM console. the orphaned Windows Computer shouldn’t be there anymore.

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