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Release: Australia · Updated: 2026-05-25 · Official documentation · View source

Download and install .Net Desktop Runtime for AI Desktop Actions

Reduce setup time and prevent installation errors by downloading and installing .Net Desktop Runtime following the instructions.

Before you begin

Ensure that you have installed the AI Desktop Actions MSI. For more information, see Download AI Desktop Actions installer.

Role required: admin

About this task

The AI Desktop Actions installer guides you through installation of .NET Desktop Runtime during the setup.

Procedure

  1. Copy the following script to your clipboard.

    Write-Host "--- Initializing Agentic Environment Setup ---" -ForegroundColor Cyan
    $ErrorActionPreference = "Stop"
    
    $downloadUrl = "https://dot.net/v1/dotnet-install.ps1"
    $workingDir = $PSScriptRoot
    $scriptPath = Join-Path $workingDir "dotnet-install.ps1"
    
    try {
        Write-Host "[1/3] Downloading official Microsoft installer..." -ForegroundColor Yellow
        Invoke-WebRequest -Uri $downloadUrl -OutFile $scriptPath
    
        Write-Host "[2/3] Installing .NET 9.0.10..." -ForegroundColor Yellow
        Set-Location $workingDir
    
        & .\dotnet-install.ps1 `
            -Architecture x64 `
            -InstallDir "C:\Program Files\dotnet\" `
            -Runtime windowsdesktop `
            -Version 9.0.10
    
        & .\dotnet-install.ps1 `
            -Architecture x64 `
            -InstallDir "C:\Program Files\dotnet\" `
            -Runtime dotnet `
            -Version 9.0.10
    
        Write-Host ""
        Write-Host "--- SUCCESS: System is ready for Agentic Desktop ---" -ForegroundColor Green
    }
    catch {
        Write-Host ""
        Write-Host "--- ERROR: Installation failed ---" -ForegroundColor Red
        Write-Host $_.Exception.Message -ForegroundColor Red
    }
    
    Write-Host ""
    Write-Host "Press any key to exit..."
    $null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
    
  2. Paste the script in any text editor.

  3. Save the file with a .ps1 extension.

    1. Select File > Save As.

    2. In the File name field, enter a name and save the file with a .ps1 extension.

      Example: myscript.ps1

    3. Set Save as type to All Files (.).

    4. Choose a location such as Documents or Desktop.

    5. Select Save.

  4. Run the script in Windows PowerShell.

    1. Select Start.

    2. Search for Windows PowerShell.

    3. Select Run as administrator.

    4. Use the cd command to move to the folder where you saved the script.

      Example:

      cd C:\Users\YourName\Documents
      
    5. Run the script by entering the following command.

      Example:

      .\myscript.ps1
      

Result

.NET Desktop Runtime is downloaded and installed on your system.

What to do next

Use AI Desktop Actions to design desktop actions. For more information, see Defined path desktop actions in AI Desktop Actions.

Parent Topic:Configuring AI Desktop Actions for defined path desktop actions