Windows 8 and Windows Server 2012 introduce a new feature called Automatic Maintenance.
Automatic Maintenance consolidates many different features that each used to manage its own scheduling and execution logic.
The minimum system requirements for Windows Server 2012 are listed in the following table.
For more information about system requirements and pre-installation information, see Installing Windows Server 2012.
More detailed information on GUI and Windows Power Shell-based installations, including command line syntax and step-by-step wizard instructions, see Install Active Directory Domain Services.
For administrators that want to control the introduction of schema changes in an Active Directory forest independent of the installation of Windows Server 2012 DCs in an existing forest, commands can still be run at an elevated command prompt.
Prerequisite checks in the AD DS Installation Wizard identify potential errors before the installation begins.
Error conditions can be corrected to eliminate concerns from a partially complete upgrade.
The entries for the DNS servers are stored in the registry in the location HKEY_LOCAL_MACHINE\SYSTEM\Current Control Set\Services\Tcpip\Parameters under the Name Server value, Each entry should be separated by a space. EXE the command to change would be as follows reg update HKLM\System\Current Control Set\Services\Tcpip\Parameters\Name Server="18.104.22.168 22.214.171.124" \ where 126.96.36.199 and 188.8.131.52 were the addresses of the DNS servers you wanted to configure.
Note it sets the value, it does not append so ensure you enter in the existing DNS servers as well as the new ones.
To help ensure consistent and predictable restart behavior for all devices and computers in your enterprise, including those that run Windows 8 and Windows Server 2012, see Microsoft KB article 2885694 (or see October 2013 cumulative rollup 2883201), then configure policy settings described in the WSUS blog post Enabling a more predictable Windows Update experience for Windows 8 and Windows Server 2012 (KB 2885694).
The following table summarizes new features for AD DS in Windows Server 2012 R2, with a link to more detailed information where it is available.
Beginning in Windows Server 2012, command-line installations are performed by using the ADDSDeployment Module in Windows Power Shell.