TL;DR:
Open Powershell, paste the command below and run Update-Help and it should download all AVAILABLE help files:
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
It will a give a red warning for the modules that did not have any help files like:
update-help : Failed to update Help for the module(s) 'ConfigDefender, ConfigDefenderPerformance, PSReadline, WindowsUpdateProvider' with UI culture(s) {en-US} : Unable to retrieve the HelpInfo XML file for UI culture en-US. Make sure the HelpInfoUri property in the module manifest is valid or check your network connection and then try the command again. At line:1 char:1 + update-help + ~~~~~~~~~~~ + CategoryInfo : ResourceUnavailable: (:) [Update-Help], Exception + FullyQualifiedErrorId : UnableToRetrieveHelpInfoXml,Microsoft.PowerShell.Commands.UpdateHelpCommand
Long story:
I was trying to find a module and install it:
Find-Module -Name AudioDeviceCmdlets
But it needs NuGet so it prompts to install it but it failed for me:
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 '$HOME\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 WARNING: Unable to download from URI 'https://go.microsoft.com/fwlink/?LinkID=627338&clcid=0x409' to ''. WARNING: Unable to download the list of available providers. Check your internet connection.
So I googled for a solution and found out that I need to paste this on Powershell:
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
And the NuGet installed just fine, so I remember the issue I had with Update-Help, so I tried it and it worked, and now when I do for example Get-Help Get-Item the help is shown fully.
From Niels Weistra on answers.microsoft:
The solution mentioned above is a workaround, to solve your issue permanently
Open Powershell and check for supported protocols by using [Net.ServicePointManager]::SecurityProtocol
Run the following 2 cmdlets to set .NET Framework strong cryptography registry keys:
Set strong cryptography on 64 bit .Net Framework (version 4 and above):
Set-ItemProperty -Path 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\.NetFramework\v4.0.30319' -Name 'SchUseStrongCrypto' -Value '1' -Type DWord
Set strong cryptography on 32 bit .Net Framework (version 4 and above):
Set-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\.NetFramework\v4.0.30319' -Name 'SchUseStrongCrypto' -Value '1' -Type DWord
- Restart Powershell and check again for supported protocol by using
[Net.ServicePointManager]::SecurityProtocol
Source:
https://answers.microsoft.com/en-us/windows/forum/all/trying-to-install-program-using-powershell-and/4c3ac2b2-ebd4-4b2a-a673-e283827da143
Install NuGet via PowerShell script