Installing Windows PowerShell 3.0

Topic Last Modified: 2013-02-21

Lync Server 2013 requires the 5/31/2012 version of Windows PowerShell 3.0 on each computer that will take part in your Lync Server topology. When the final version of Lync Server 2013 is released, it is expected that Windows PowerShell 3.0 will ship with the product, and, if necessary, be installed at the same time that you install Lync Server itself. For the Lync Server 2013 release, however, you will need to download and install Windows PowerShell 3.0 yourself.

The 5/31/2012 release of Windows PowerShell 3.0 can be found in the Microsoft Downloads Center at (http://go.microsoft.com/fwlink/p/?LinkId=268538). You should download the file Windows6.1-KB2506143-x64.msu from the Downloads Center and then save a copy of that file to each computer where you need to install Windows PowerShell 3.0. It is also recommended that you uninstall any previous version of Windows PowerShell 3.0 before installing the 5/31/2012 release. To uninstall a previous version of Windows PowerShell 3.0 complete the following procedure on each computer where the previous version has been installed:

1. In the Windows Control Panel, click Uninstall a Program.
   
2. In Programs and Features, click View installed updates.
   
3. In the Uninstall an update pane, in the Microsoft Windows section, locate the update titled Microsoft Windows Management Framework 3.0 Beta (KB2506143).
   
4. Right-click Microsoft Windows Management Framework 3.0 Beta (KB2506143) and then click Uninstall.
   
5. In the Uninstall an update dialog box, click Yes.
   

Note that you will need to restart the computer after the update has been uninstalled.

After the computer has restarted, you can install the 5/31/2012 release of Windows PowerShell 3.0 by completing the following procedure on each computer where Lync Server 2013 will be installed:

1. Double-click the file Windows6.1-KB2506143-x64.msu.
   
2. In the Windows Update Standalone Installer dialog box, click Yes when asked if you want to install the update.
   
3. In the Download and Install Update wizard, on the Read these license terms page, click I Accept.
   
4. On the Installation complete page, click Restart Now to immediately restart your computer. (Your computer must be restarted in order for the updates to take effect.) If you prefer not to immediately restart your computer, click Close. As noted, you will still need to restart the computer before Windows PowerShell 3.0 is fully installed.
   

After the computer has restarted you can verify that Windows PowerShell 3.0 has been installed by completing the following check:

1. Click Start, click All Programs, click Accessories, click Windows PowerShell, and then click Windows PowerShell.
   
2. In the Windows PowerShell console, type the following command at the command prompt and then press ENTER:
   
   Copy

   Get-Host | Select-Object Version
   

3. If Windows PowerShell 3.0 has been installed you will see output that looks like this:
   
   Copy

   Version
   -------
   3.0
   

Assuming your computer meets all the other prerequisites you can now install Lync Server 2013.