Is Windows PowerShell 2.0 installed by default on Windows 7?
Solution 1
You can also use $PSVersionTable
PS > $PSVersionTable
Name Value
---- -----
PSVersion 2.0
PSCompatibleVersions {1.0, 2.0}
BuildVersion 6.1.7600.16385
PSRemotingProtocolVersion 2.1
WSManStackVersion 2.0
CLRVersion 4.0.30319.225
SerializationVersion 1.1.0.1
This var exists only in PowerShell V2.0 and gives th CLR version you use. Normal result is:
PS > $PSVersionTable
Name Value
---- -----
CLRVersion 2.0.50727.4959
BuildVersion 6.1.7600.16385
PSVersion 2.0
WSManStackVersion 2.0
PSCompatibleVersions {1.0, 2.0}
SerializationVersion 1.1.0.1
PSRemotingProtocolVersion 2.1
Solution 2
The location of the PowerShell executable and supporting files wasn't changed for V2, nor was the .ps1
script extension because V2 is fully backward compatible—it replaces V1 rather than needing some side by side mechanism.
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kenwarner
i write software for a living. someday a robot is going to take my job. i can't wait.
Updated on September 18, 2022Comments
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kenwarner over 1 year
http://msdn.microsoft.com/en-us/library/ff637750.aspx claims
Windows PowerShell 2.0 needs to be installed on Windows Server 2008 and Windows Vista only. It is already installed on Windows Server 2008 R2 and Windows 7.
However, powershell.exe lives here %SystemRoot%\system32\WindowsPowerShell\v1.0\powershell.exe. That doesn't seem like it would be PowerShell 2.0. The file version of powershell.exe is 6.1.7600.16385 so that doesn't help much either.
How do I know for sure if I have Window PowerShell 2.0 installed and if I don't, where is a download link for Windows 7?
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Senabi Kolkata almost 13 yearspowershell v2 is in the v1.0 directory on win7/2008r2. You couldn't install v1 of powershell on those platforms even if you wanted to. They are system components. IF you are on w7 or r2, you can assume you have v2 or higher powershell.
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Admin almost 13 yearsOr use the
$Host
automatic variable. It's marked as implementation-specific in the specification, though (then again,Get-Host
doesn't appear at all in the spec). -
Admin almost 13 yearsGet-Host doesn't appear at all in the spec -> That's weird. They just released that spec a couple of weeks ago. Wonder if that was an oversight?
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Admin almost 13 yearsWell, maybe it's not considered part of the core language cmdlets.
$Host
is also only implementation-defined. The specification apparently only covers the PowerShell language, not the API and host model. -
Admin almost 13 yearsIt doesn't cover the PSProviders either, but there's a get- for those.