What are the forest functional levels in Windows Server 2008?
Forest Functional Levels
| Forest functional level | Important changes |
|---|---|
| Windows Server 2008 | No changes compared to Windows Server 2003 Forest operating mode |
| Windows Server 2008 R2 | Active Directory Recycle Bin |
| Windows Server 2012 | No changes compared to Windows Server 2008R2 Forest operating mode |
How do you raise forest functional level 2008R2?
In the console tree, right-click Active Directory Domains and Trusts, and then click Raise Forest Functional Level. Under Select an available forest functional level, click Windows Server 2008 R2, and then click Raise.
How do I check my domain forest functional level?
From the “Administrative Tools” menu, select “Active Directory Domains and Trusts” or “Active Directory Users and Computers“. Right-click the root domain, then select “Properties“. Under the “General” tab, the “Domain functional level” and “Forest functional level” is displayed on the screen.
What is Active Directory forest functional level?
Forest functional levels. Forest functional levels enable features across all domains within a forest. It also controls which Windows Server operating systems can be run on domain controllers in all domains in the forest.
How do I upgrade forest functional level?
In the left pane, right-click on Active Directory Domains and Trusts and select Raise Forest Functional Level.
- You will see a list of forest functional levels that are available. Select the required functional level.
- Click Raise.
- You will get a warning message. Read the message, and click OK.
How do I set forest functional level?
To raise the functional level of a forest, you must be a member of the Enterprise Admins group. The Active Directory Domains and Trusts snap-in is also used to raise the functional level of the forest. Right click on the root of the snap-in, and select Raise Forest Functional Level. Important!
Can domain functional level be higher than forest?
You can set the domain functional level to a value that is higher than the forest functional level, but you cannot set the domain functional level to a value that is lower than the forest functional level.
What are functional levels?
Functional levels determine the available Active Directory Domain Services (AD DS) domain or forest capabilities. They also determine which Windows Server operating systems you can run on domain controllers in the domain or forest. This way, you can use as many AD DS features as possible.
What happens when raising domain functional level?
The only impact of raising the domain and forest functional levels is that you will no longer be able to deploy domain controllers from older versions of Windows Server. Also, as long as you have an older version of Windows Server as a DC you won’t be able to raise the level past that server.
How to raise forest functional level to Windows Server 2008?
Click Windows Server 2003, and then click Raise to raise the forest functional level to Windows Server 2003. Click Windows Server 2008, and then click Raise to raise the forest functional level to Windows Server 2008. Read the warning message, and if you wish to perform the action, click Ok.
How to enable Domain and forest functional levels?
The most common method to enable the domain and forest functional levels is to use the graphical user interface (GUI) administration tools that are documented in the TechNet article about Windows Server 2003 Active Directory functional levels. This article discusses Windows Server 2003.
What are the features of Windows Server 2008R2?
Windows Server 2008R2 forest functional level features. All of the features that are available at the Windows Server 2003 forest functional level, plus the following features: Active Directory Recycle Bin, which provides the ability to restore deleted objects in their entirety while AD DS is running.
How to raise Windows 2000 domain functional level?
Windows 2000 Server domains maintain their current domain functional level when Windows 2000 Server domain controllers are upgraded to the Windows Server 2003 operating system. You can raise the domain functional level to either Windows 2000 Server native or Windows Server 2003. Interim level – upgrade from a Windows NT 4.0 domain