Cannot Remove a DP – Old Site System from SCCM

The most simple and stupid solution is to just wait 24h, and then SCCM will let you remove it 🙂

If you want it fast, you can try this:

Open your regedit:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SMS\SMS_SITE_COMPONENT_MANAGER\Component Servers

Find out your old DP, and on each “Deinstallation Start Time” REG_DWORD value to 1.. then restart  SMS_SITE_COMPONENT_MANAGER.

 

However, if the old DP already no longer accessible, you can directly remove it from SQL database:

Here is the ultimate way to remove a DP from SCCM:

use CM_<sitecode>
declare @ServerName varchar(15)
set @ServerName=’<orphanFQDN>

delete from statusmessages where machinename=@ServerName
delete from Summarizer_Components where MachineName like ‘%’+@ServerName+’%’
delete from summarizer_sitesystem where sitesystem like ‘%’+@ServerName+’%’
delete from statusmessageinsstrs where insstrvalue like ‘%’+@ServerName+’%’
delete from sysreslist where servername=@ServerName
delete from sc_sysresuse where nalpath like ‘%’+@ServerName+’%’

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