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Install-Module command was found in the module PowerShellGet

PowerShell’s Install-Module cmdlet downloads one or more modules from a repository and installs them on the local computer. But, when you run Install-Module, you may get the following error:

Install-Module : The ‘Install-Module’ command was found in the module ‘PowerShellGet’, but the module could not be loaded. For more information, run ‘Import-Module PowerShellGet’.
At line:1 char:1
+ Install-Module
+ ~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (Install-Module:String) [], CommandNo

The Install-Module cmdlet is available only on PowerShell 5.1 & higher, and the Windows 7 & 8 systems needed a PowerShell version upgrade to use this cmdlet. However, on Windows 7, 8 systems with older versions of PowerShell, running the command shows the following error which is slightly different than the above:

‘Install-Module’ is not recognized as the name of a cmdlet, function, script file, or operable program.

However, the above error may also occur in a Windows 10 computer which already includes PowerShell 5.1. Running the $PSVersiontable command showed the PowerShell version on my Windows 10 v1903 system as 5.1.18362.145.

PSVersion 5.1.18362.145
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.18362.145
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3

Then, why doesn’t the Install-Module cmdlet work?

Install-Module command was found in the module PowerShellGet

The error Install-Module command was found occurs if the script execution policy is set to Restricted. To use the cmdlet, set the execution policy to Unrestricted, using the following command.

Set-ExecutionPolicy -ExecutionPolicy Unrestricted -Scope Process

The above command sets the execution policy to Unrestricted for the current PowerShell session.

If you want to set it permanently for the current user, then use this command:

Set-ExecutionPolicy Unrestricted -Scope CurrentUser

To set it permanently for the local machine, use this command from elevated or admin PowerShell:

Set-ExecutionPolicy Unrestricted -Scope LocalMachine

For more information, see Microsoft documentation on Set-ExecutionPolicy.

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