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by Kotohoyoh, Florence

How to Install .NET Framework 3.5 (2.0/3.0) on Windows Server

Option 1: Install via Server Manager (GUI Method)

  1. Download the ISO for your Windows Server version (links below).
  2. Mount the ISO in the operating system.
  3. Open Server Manager → Add Roles and Features.
  4. Select Role-based or feature-based installation.
  5. Choose the local server as the destination.
  6. Skip the Server Roles page by clicking Next.
  7. In Features, enable .NET Framework 3.5 Features.
  8. Click Next.
  9. In Confirm installation selections, click Specify an alternate source path.
  10. Set source path to point to iso file e.g. 
    D:\sources\sxs
  11. Click OK, then Install to start the .Net Framework 3.5 Features installation.
  12. After installation, run Windows Update to install available .NET updates.
  13. Unmount/eject the ISO if no longer needed.

Option 2: Install via PowerShell

Install-WindowsFeature NET-Framework-Core -Source D:\sources\sxs

Official Windows Server Evaluation ISO Downloads