Extended Security Updates (ESU) Licensing Preparation Package for Windows Server 2008 SP2

Applies to: Windows Server 2008 Service Pack 2


This update provides the complete set of licensing changes to enable installation of the ESU MAK add-on key, which is one of the steps to prepare for installation of Extended Security Updates. For the full set of steps, please see KB4522133

If you have previously successfully installed and activated your ESU key, you do not need to re-install or reactivate it after taking this update.

A reboot is required after applying this update before you can install any other updates.

For more information about the ESU program, see the following resource:

Important Before you apply this update, see the Prerequisites section.

Known issues in this update

We are currently not aware of any issues that affect this update.

How to get this update

Method 1: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Method 2: Windows Server Updates Services

This update is also available through Windows Server Update Services (WSUS).


You must have the following updates installed before you apply this update. If you use Windows Update, these updates will be offered automatically as needed.

Important You must restart your device after you install these required updates and before you apply any Monthly Rollup, Security-Only Update, Preview of Monthly Rollup, or standalone update.

Restart information

You must restart your device after you apply this update.

File information

File verification

File attributes

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.


For information on SSUs, see the following articles:

Learn about the terminology that Microsoft uses to describe software updates.