This article describes the issues that are fixed by an update for the Windows Server 2012 Essentials Migration Preparation Tool.
The Windows Server 2012 Essentials Migration Preparation Tool is included in the Windows Server 2012 Essentials installation media. Run this tool on the migration source server to prepare it for migration. This tool performs the following tasks on the source server:
Raises the domain and forest functional levels
Updates the Active Directory schema
Installs an update to extend license support
Converts the Microsoft Exchange server from mixed mode to native mode
Scans the source server to identify potential problems
How to obtain this update
To obtain the update, run the Windows Server 2012 Essentials Migration Preparation Tool.
To apply this update, you must have the Windows Server 2012 Essentials Migration Preparation Tool installed on the migration source server.
To use the update in this package, you do not have to make any changes to the registry.
You do not have to restart the computer after you apply this update.
Update replacement information
This update does not replace a previously released update.
Issues that are fixed by this update
When you run the Windows Server 2012 Essentials Migration Preparation Tool, an error is detected during the "Scan the Source Server for problems" stage. However, the description of the error refers you to an incorrect link.
Consider the following scenario:
In the DNS Management snap-in (Dnsmgmt.msc), you remove the _msdcs subdomain in the contoso.local DNS zone.
You remove the _msdcs delegation from the contoso.local DNS zone.
You run the Windows Server 2012 Essentials Migration Preparation Tool to scan for issues.
In this scenario, an error is detected that indicates that the local server is not in the name server records.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates