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How can I remove PowerShell 1.0 from Windows 7 to install PowerShell 2.0.? I can't find it in the list of installed programs and updates.

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migrated from Feb 14 '10 at 20:54

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Powershell 2.0 is installed on Windows7 by default. It's not possible to install 1.0 on Win7. It's misleading a bit because some places still reference 1.0 in the directory structure and registry but if you're on Win7, it's PowerShell 2.0

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It's misleading a lot. I am a big PowerShell fan but in my opinion this versioning decision was one of the worst the team made. – Josh Feb 14 '10 at 19:29

To see the version of PowerShell you have, type in:


at the PSH (console window or ISE). This will result in something like this:

Name                           Value
----                           -----
CLRVersion                     2.0.50727.4927
BuildVersion                   6.1.7600.16385
PSVersion                      2.0
WSManStackVersion              2.0
PSCompatibleVersions           {1.0, 2.0}
PSRemotingProtocolVersion      2.1
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PowerShell is a required component of the Windows 7 OS. All of the troubleshooting features (Control Panel\All Control Panel Items\Troubleshooting) rely upon PowerShell to execute the underlying troubleshooting logic.

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