I am looking for a guide on how to move from WSUS to Desktop Central patch management. And since we were setting up a GPO to connect clients to WSUS, should i modify the GPO or get use from it to move from WSUS to DC? 

Also, i received some windows update errors inside different servers (2008 R2, 2012, 2012 R2) because our WSUS server having a problem while we are pushing the updates through DC, so what solved the problem is removing "   HKLM\Software\Policies\Microsoft\ Windows\WindowsUpdate" folder from the registry in each machine because WSUS server records are there and restarting that machine. Should i do that for all machines to move from WSUS to DC? 

And any steps or recommendation? 

Thanks & Regards, 

Mahdi