A. Raising a forest is a one-way process that you can't reverse. All domains in the forest must be in Windows 2000 native mode or later--if they aren't, the upgrade will fail and Windows will display a warning. During the upgrade, Windows will raise any Win2K native-mode domains to Win.NET Server domain level. To raise your forest, perform the following steps:
- Log on as a domain administrator of the root domain to a domain controller (DC) or a machine running the Win.NET Server administration tools.
- Start the Microsoft Management Console (MMC) Active Directory Domains and Trusts snap-in (go to Start, Programs, and select Administrative Tools).
- Right-click the root (i.e., Active Directory Domains and Trusts), then select the Raise Forest Functional Level option from the context menu--Windows will display the current forest mode.
Click here to view image - Select the new forest mode, then click Raise.
- Click OK to close the confirmation dialog box.
Windows will inform you that it has completed the change and will replicate the change to all DCs.
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