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Can't install Exchange Server 2010 SP3 when you define a Windows PowerShell script execution policy in Group Policy

Article ID: 2810617 - View products that this article applies to.

Symptoms

Consider the following scenario:

You define a Windows PowerShell script execution policy by applying a Group Policy Object, or you apply a local Group Policy.
You try to upgrade an earlier version of Exchange Server 2010 to Exchange 2010 Service Pack 3 (SP3).
The setup process fails after the Remove Exchange Files step is completed.

In this scenario, Exchange 2010 does not work on the affected server. Additionally, you cannot restart the setup process.

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This issue occurs because the required Windows Management Instrumentation (WMI) service stops during the installation process. The WMI service is needed to query Active Directory Domain Services (AD DS) to verify the Windows PowerShell script execution policy that must run as a part of the setup.

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Resolution

To avoid this issue, follow these steps:

Disable the execution Group Policy by using the Group Policy Management Console (Gpmc.msc) or Local Group Policy Editor (Gpedit.msc). Group Policy objects for the execution Group Policy must be set to Undefined.
Install Microsoft Exchange Server 2010 SP3.
Re-enable the previously defined Windows PowerShell script execution policy in the Group Policy Management Console or Local Group Policy Editor.

For more information about Exchange Server 2010 SP3, click the following article number to view the article in the Microsoft Knowledge Base:

2808208

(http://support.microsoft.com/kb/2808208/ )

Description of Exchange Server 2010 Service Pack 3

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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More information

To verify the execution policies before you begin the installation process, run the following Windows PowerShell cmdlet:

Get-ExecutionPolicy -list

The output should resemble the following:

Scope ExecutionPolicy 
----- --------------- 
MachinePolicy Undefined
UserPolicy Undefined 
Process Undefined 
CurrentUser Undefined 
LocalMachine Undefined

If any of the execution policies are set to a status other than Undefined, refer to the steps in the "Resolution" section before you install Exchange Server 2010 SP3.

For information about an issue that can occur when you run a setup and encounter an error, click the following article number to view the article in the Microsoft Knowledge Base:

2668686

(http://support.microsoft.com/kb/2668686/ )

Error message when you try to install Exchange Server 2010 SP2: "AuthorizationManager check failed"

For information about an issue that can occur when you try to install Update Rollup 1 for Microsoft Exchange Server 2010, go to the following article in the Microsoft Knowledge Base:

981474

(http://support.microsoft.com/kb/981474/ )

You receive error 1603 when you try to install the Exchange Server 2010 RU1

For information about an issue that can occur when you try to install an update rollup for Microsoft Exchange Server 2010, go to the following article in the Microsoft Knowledge Base:

2467565

(http://support.microsoft.com/kb/2467565/ )

You cannot install an update rollup for Exchange Server 2010 with a deployed GPO that defines a PowerShell execution policy for the server to be updated

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