Install-Module Notes
Recently I noticed I wasn’t able to install any module from the PowerShell repositories I had, but through the browser the download succeeded. I ran the -debug parameter, detailing that the cmdlet had no issue accessing the repository site or path either, just saying 'failed to download' at the end.
It was rather odd; I even re-adding a copy the default PSGallery thinking that it was somehow corrupted didn't help:
Set-PSRepository -Name "PSGallery1" -SourceLocation "https://www.powershellgallery.com/api/v2/" -InstallationPolicy Trusted
I listed the current repositories I had and tried to install a module again:
Get-PSRepository
Install-Module -Name PSWindowsUpdate -Repository "PSGallery1"
Still no dice. I did some more reading into this issue and discovered TLS 1.2 needed to be set within this PowerShell session:
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
After running this command, Install-Module suceeded. To make this persistent, you need to create and modify your PowerShell profile to include it. To check whether you have a PowerShell Profile:
Test-Path $profile
If the returned value is $false, you will need to create a blank profile yourself:
New-Item -Path $profile -type file –Force
Now edit the profile file to include enabling TLS 1.2 or other options:
notepad C:\Users\MyAccount\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1
In my example, I changed the default path along with enabling TLS 1.2 and clearing the session:
Set-Location C:\
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12Clear-Host