You cannot upgrade a Windows-based operating system when you have Windows PowerShell 1.0 installed

You cannot upgrade a Windows-based operating system when you have Windows PowerShell 1.0 installed

Article ID : 950376
Last Review : April 15, 2008
Revision : 1.0
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SYMPTOMS

When you try to upgrade the operating system on a computer that has Windows PowerShell 1.0 installed, the upgrade fails. Additionally, the Compatibility Check feature displays the following message:

You must make the following changes before upgrading Windows:
Uninstall the following program:

• Windows PowerShell

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WORKAROUND

To work around this problem, eliminate the Compatibility Check error. To do this, follow these steps:

1. Uninstall Windows PowerShell 1.0.
2. Perform the operating system upgrade again.
3. Reinstall Windows PowerShell 1.0.

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MORE INFORMATION

How to uninstall Windows PowerShell 1.0

To uninstall Windows PowerShell 1.0, follow the steps that are appropriate to your operating system.

Windows Vista

1. Click Start, type appwiz.cpl in the Start Search box, and then press ENTER.
2. In the list of tasks, click View Installed Updates.
3. In the Uninstall an update list, right-click Windows PowerShell(TM) 1.0 (KB928439), and then click Uninstall.
4. Follow the instructions to uninstall Windows PowerShell 1.0.

Note If you disable Windows PowerShell by using the Turn Windows Features on or off option, this does not satisfy the Compatibility Check process. You must uninstall Windows PowerShell.

Windows Server 2003

1. Click Start, click Run, type appwiz.cpl, and then click OK.
2. Click to select the Show updates check box.
3. In the Currently installed programs and updates list, find the entry for the hotfix that installed Windows PowerShell 1.0. Depending on the installation package that was used, this entry resembles one of the following:

• Hotfix for Windows Server 2003 (KB926139)
• Hotfix for Windows Server 2003 (KB926140)
• Hotfix for Windows Server 2003 (KB926141)
4. Click the Windows PowerShell hotfix entry, and then click Remove.
5. Follow the instructions to uninstall the hotfix for Windows PowerShell 1.0.

Windows XP

1. Click Start, click Run, type appwiz.cpl, and then click OK.
2. Click to select the Show updates check box.
3. In the Currently installed programs and updates list, click Windows PowerShell(TM) 1.0, and then click Remove.
4. Follow the instructions to uninstall Windows PowerShell 1.0.

Click one of the following links to reinstall Windows PowerShell 1.0, depending on the version of the operating system and on the language preference:

For more information about Windows PowerShell 1.0 English language installation packages for Windows Server 2003 and for Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:

926139 (/Feedback.aspx?kbNumber=926139/) Windows PowerShell 1.0 English Language Installation Packages for Windows Server 2003 and for Windows XP

For more information about the Windows PowerShell 1.0 localized installation package for Windows Server 2003 and for Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:

926140 (/Feedback.aspx?kbNumber=926140/) Windows PowerShell 1.0 Localized Installation Package for Windows Server 2003 and for Windows XP

For more information about the Windows PowerShell 1.0 Multilingual User Interface (MUI) language pack for Windows Server 2003 and for Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:

926141 (/Feedback.aspx?kbNumber=926141/) Windows PowerShell 1.0 Multilingual User Interface (MUI) Language Pack for Windows Server 2003 and for Windows XP

For more information about the Windows PowerShell 1.0 installation package for Windows Vista, click the following article number to view the article in the Microsoft Knowledge Base:

928439 (/Feedback.aspx?kbNumber=928439/) Windows PowerShell 1.0 Installation Package for Windows Vista

For more information about Windows PowerShell, visit the following Microsoft Web sites:

• Windows PowerShell
http://www.microsoft.com/windowsserver2003/technologies/management/powershell/default.mspx (http://www.microsoft.com/windowsserver2003/technologies/management/powershell/default.mspx)
• Windows PowerShell Online Help
http://technet.microsoft.com/en-us/library/bb978526.aspx (http://technet.microsoft.com/en-us/library/bb978526.aspx)
• Windows PowerShell blog
http://blogs.msdn.com/powershell (http://blogs.msdn.com/powershell)
• Windows PowerShell discussion group
http://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx?dg=microsoft.public.windows.powershell (http://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx?dg=microsoft.public.windows.powershell)
• Windows PowerShell SDK
http://msdn2.microsoft.com/en-us/library/ms714469.aspx (http://msdn2.microsoft.com/en-us/library/ms714469.aspx)

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APPLIES TO
• Windows Vista Service Pack 1
• Windows Vista Enterprise 64-bit Edition
• Windows Vista Home Basic 64-bit Edition
• Windows Vista Home Premium 64-bit Edition
• Windows Vista Ultimate 64-bit Edition
• Windows Vista Business
• Windows Vista Business 64-bit Edition
• Windows Vista Enterprise
• Windows Vista Home Basic
• Windows Vista Starter
• Windows Vista Ultimate
• Microsoft Windows Server 2003 Service Pack 2
• Microsoft Windows Server 2003 Service Pack 1
• Microsoft Windows Server 2003 R2 Datacenter Edition (32-Bit x86)
• Microsoft Windows Server 2003 R2 Datacenter x64 Edition
• Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86)
• Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86)
• Microsoft Windows Server 2003 R2 Standard x64 Edition
• Microsoft Windows XP Service Pack 3
• Microsoft Windows XP Service Pack 2

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Keywords: 
kbexpertiseadvanced kbtshoot kbprb KB950376

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Microsoft Knowledge Base Article

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