You need to run this command only once in the forest. However, you can rerun this command any time if it fails to complete successfully because an infrastructure master is not available. You can run this command on any computer in the forest. You must be a member of the Enterprise Admins group to run this command. Specifies that no standard output is returned from an operation. To prepare an existing Windows or Windows Server Active Directory environment for a Windows Server domain controller, be sure to run the version of Adprep that is included in the Windows Server installation media.
You can also perform verification steps before and after you run the adprep command to help ensure that the operations complete successfully. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Running adprep is optional before adding a Windows Server domain controller. This is because Windows Server will run it automatically for you as part of the domain controller promotion process. This is called transparent adprep.
For detailed information on using adprep see Running Adprep. You only need to run adprep once. It is not harmful if you run adprep multiple times or run it on the wrong DC. It will display an error message and quit without changing anything. If you have not yet successfully run adprep , U-Move will display a warning message and refuse to proceed. Running Adprep Before you can replace your old computer with a new computer that is running a new version of Windows Server, you need to first prepare the Active Directory schema by running adprep.
If you are running a bit operating system, type adprep32 instead of adprep. This will apply the schema update to the AD forest. Apply the domain update. Not being rude just saying. As Mikey said, you need to use the adprep from the CD, in addition you have to use the 32bit version if your is 32 bit. To continue this discussion, please ask a new question. Get answers from your peers along with millions of IT pros who visit Spiceworks. What am i doing wrong? Best Answer. Tim Oct 6, at UTC. Funny I just did this like 5 minutes ago.
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