1. Log on to any server in the domain as a member of the Domain Admins group.

2. From the Microsoft Lync Server 2010 installation folder or media, run Setup.exe to start the Lync Server Deployment Wizard.

3. Click Prepare Active Directory, and then wait for the deployment state to be determined.

4. At Step 5: Prepare Current Domain, click Run.

5. On the Prepare Domain page, click Next.

6. On the Executing Commands page, look for Task status: Completed, and then click View Log.

7. Under the Action column, expand Domain Prep, look for a <Success> Execution Result at the end of each task to verify that domain preparation completed successfully, close the log, and then click Finish.

8. Wait for Active Directory replication to complete or force replication to all the domain controllers listed in the Active Directory Sites and Services snap-in for the forest root domain controller.

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