The situation is we have a 1 year old DELL Poweredge 2800 running Windows 2003 It is the first domain controller running Active directory DHCP DNS etc
We have just purchased a new DELL Poweredge running Windows 2003 R2 that we want to put on that same domain and use active directory on it
When I ran the windows active directory tool,
It came back saying that the existing Active Directory schema on Windows 2003 is incompatible with Windows 2003 R2
Please run adprep /forestprep from command prompt on master schema
Can this be run when server is live with users logged in and what are the chances of it causing problems
It would be the first time to do this type of upgrade on Windows 2003 R2
Could you assist me please ?