How to prepare existing forest in windows server 2008 r2 for active directory domain service migration in windows 2012 r2 by running adprep command

Check the current schema version of the existing forest. • Press windows key, type “run”. In run, search “regedit” and click OK. It will open Registry Editor. • Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\NTDS\Parameters. • Scroll down and you will see the Schema Version is 0x0000002f (47). The schema version of this server is 47 and you will …

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