1. Install the Windows 2000/2003 Support Tools by running Setup.exe from the SupportTools folder on the Windows CD.
  2. Run Adsiedit.msc as a Domain Administrator.
  3. Expand the Domain NC node. Right-click the object that begins with “DC=” and select Properties.
  4. In the Select which properties to view box, select Both.
  5. In the Select a property to view box, select ms-DS-MachineAccountQuota.
  6. In the Edit Attribute box, type the number representing the new limit.
  7. Click Set, and then click OK.