Troubleshooting Active Directory Schema

Applies To: Windows Server 2008, Windows Server 2008 R2, Windows Server 2012

  • I am unable to add the Active Directory Schema snap-in to Microsoft Management Console (MMC)..

  • I am unable to find the Active Directory Schema snap-in..

I am unable to add the Active Directory Schema snap-in to Microsoft Management Console (MMC).
  • Cause: Schmmgmt.dll has not been registered.

  • Solution: Open a command prompt, type regsvr32 schmmgmt.dll, and then press ENTER.

I am unable to find the Active Directory Schema snap-in.
  • Cause: You saved the MMC snap-in, but you do not know where it is saved.

  • Solution: Open MMC (click Start, click Run, type mmc, and then click OK), and then click File. The menu shows the last four locations where you saved a snap-in. Check to see if Active┬áDirectory Schema or Schmmgmt.msc is on the list, and then follow the path to the file. When you locate the .msc file, drag it to the Start menu to create a shortcut to the snap-in.