Raise Domain Functional Level

1. Open Active Directory Domains and Trusts. To open Active Directory Domains and Trusts, click Start , click Administrative Tools , and then click Active Directory Domains and Trusts .
2. In the console tree, right-click the domain for which you want to raise functional level, and then click Raise Domain Functional Level .
3. In Select an available domain functional level , select the value and then click Raise .