Deactivate the attribute using the Active Directory Schema snap-in.
To deactivate an attribute, perform the following steps:
1. | Log on to a domain controller or a member computer that has Windows Server 2008 RSAT installed.
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2. | Click Start, click Administrative Tools, and click Active Directory Schema.
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3. | In the console tree, expand Active Directory Schema and then click Attributes.
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4. | In the details pane, right-click the attribute you want to deactivate and click Properties.
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5. | On the attribute’s properties page, shown in Figure 1, deselect the check box next to Attribute is active.
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6. | On the warning box for making the schema object defunct, shown in Figure 2, click Yes.
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7. | Click OK to save the changes.
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