InstallWinGet PowerShell

InstallWinGet.ps1

function InstallWinGet()
{
	$hasPackageManager = Get-AppPackage -name "Microsoft.DesktopAppInstaller"

	if(!$hasPackageManager)
	{
		$releases_url = "https://api.github.com/repos/microsoft/winget-cli/releases/latest"

		[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
		$releases = Invoke-RestMethod -uri "$($releases_url)"
		$latestRelease = $releases.assets | Where { $_.browser_download_url.EndsWith("msixbundle") } | Select -First 1
	
		Add-AppxPackage -Path $latestRelease.browser_download_url
	}
}

<#
		Add-AppxPackage -Path "https://aka.ms/Microsoft.VCLibs.x64.14.00.Desktop.appx"
		
		$releases_url = "https://api.github.com/repos/microsoft/winget-cli/releases/latest"

		[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
		$releases = Invoke-RestMethod -uri "$($releases_url)"
		$latestRelease = $releases.assets | Where { $_.browser_download_url.EndsWith("appxbundle") } | Select -First 1
	
		Add-AppxPackage -Path $latestRelease.browser_download_url
#>

what version of windows are you on?

if you did

$releases_url = "https://api.github.com/repos/microsoft/winget-cli/releases/latest"

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
$releases = Invoke-RestMethod -uri "$($releases_url)"
$latestRelease = $releases.assets | Where { $_.browser_download_url.EndsWith("msixbundle") } | Select -First 1
	
$latestRelease.browser_download_url

What is outputted? Mine is https://github.com/microsoft/winget-cli/releases/download/v1.0.11692/Microsoft.DesktopAppInstaller_8wekyb3d8bbwe.msixbundle

I get the same output

https://github.com/microsoft/winget-cli/releases/download/v1.0.11692/Microsoft.DesktopAppInstaller_8wekyb3d8bbwe.msixbundle

Try just the “Add-AppxPackage -Path “ with that url.

How can I install this with Local System account. (I am trying to install winget on the remote Azure VM)
Error while trying to install winget using above script from Azure portal (using RunPowerShellScript for the VM)

Add-AppxPackage : Deployment failed with HRESULT: 0x80073CF9, Install failed. Please contact your software vendor.
(Exception from HRESULT: 0x80073CF9)
Deployment Add operation rejected on package Microsoft.DesktopAppInstaller_2021.618.1855.0_neutral_~_8wekyb3d8bbwe
from: Microsoft.DesktopAppInstaller_8wekyb3d8bbwe.msixbundle install request because the Local System account is not
allowed to perform this operation.
NOTE: For additional information, look for [ActivityId] 6e54f4ed-76ae-0002-c58c-71cac692d701 in the Event Log or use
the command line Get-AppPackageLog -ActivityID 6e54f4ed-76ae-0002-c58c-71cac692d701
At C:\Packages\Plugins\Microsoft.CPlat.Core.RunCommandWindows\1.1.8\Downloads\script8.ps1:9 char:3

• Add-AppxPackage -Path $latestRelease.browser_download_url

+ CategoryInfo          : WriteError: (https://github....bbwe.msixbundle:String) [Add-AppxPackage], IOException
+ FullyQualifiedErrorId : DeploymentError,Microsoft.Windows.Appx.PackageManager.Commands.AddAppxPackageCommand

Why go such length?

Add-AppxPackage -Path 'https://github.com/microsoft/winget-cli/releases/latest/download/Microsoft.DesktopAppInstaller_8wekyb3d8bbwe.msixbundle'