Update PowerShellGet for Windows PowerShell 5.1

Windows PowerShell 5.1 comes with version 1.0.0.1 of the PowerShellGet and PackageManagement preinstalled. This version of PowerShellGet has a limited features and must be updated to work with the PowerShell Gallery. To be supported, you must update to the latest version.

Prerequisites

• PowerShellGet requires .NET Framework 4.5 or above. For more information, see Install the .NET Framework for developers.

• To access the PowerShell Gallery, you must use Transport Layer Security (TLS) 1.2 or higher. Use the following command to enable TLS 1.2 in your PowerShell session.

  [Net.ServicePointManager]::SecurityProtocol =
      [Net.ServicePointManager]::SecurityProtocol -bor
      [Net.SecurityProtocolType]::Tls12
  

  Add this command to your PowerShell profile script to ensure TLS 1.2 is configured for every PowerShell session. For more information about profiles, see about_Profiles.

Installing the latest version of PowerShellGet

The PowerShellGet module includes cmdlets to install and update modules:

• Install-Module installs the latest (non-prerelease) version of a module.
• Update-Module installs the latest (non-prerelease) version of a module if it's newer than the currently installed module. However, this cmdlet only works if the previous version was installed using Install-Module.

To update the preinstalled module you must use Install-Module. After you have installed the new version from the PowerShell Gallery, you can use Update-Module to install newer releases.

Windows PowerShell 5.1 comes with PowerShellGet version 1.0.0.1, which doesn't include the NuGet provider. The provider is required by PowerShellGet when working with the PowerShell Gallery.

There are two ways to install the NuGet provider:

• Use Install-PackageProvider to install NuGet before installing other modules

  Run the following command to install the NuGet provider.

  Install-PackageProvider -Name NuGet -Force
  

  After you have installed the provider you should be able to use any of the PowerShellGet cmdlets with the PowerShell Gallery.

• Let Install-Module prompt you to install the NuGet provider

  The following command attempts to install the updated PowerShellGet module without the NuGet provider.

  Install-Module PowerShellGet -AllowClobber -Force
  

  Install-Module prompts you to install the NuGet provider. Type Y to install the provider.

  NuGet provider is required to continue
  PowerShellGet requires NuGet provider version '2.8.5.201' or newer to interact with NuGet-based
  repositories. The NuGet provider must be available in 'C:\Program Files\PackageManagement\ProviderAssemblies'
  or 'C:\Users\user1\AppData\Local\PackageManagement\ProviderAssemblies'. You can also install the
  NuGet provider by running 'Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force'.
  Do you want PowerShellGet to install and import the NuGet provider now?
  [Y] Yes  [N] No  [S] Suspend  [?] Help (default is "Y"): Y
  VERBOSE: Installing NuGet provider.
  

After installing PowerShellGet

After you have installed the new version of PowerShellGet, you should open a new PowerShell session. PowerShell automatically loads the newest version of the module when you use a PowerShellGet cmdlet.

We also recommend that you register the PowerShell Gallery as a trusted repository. Use the following command:

Set-PSRepository -Name PSGallery -InstallationPolicy Trusted

For more information, see Set-PSRepository.