1. Microsoft .NET Framework 2.0 SP1

1.1. Windows XP

1.1.1. Installation

  • Log on as Administrator.

  • Run the NetFx20SP1_x86.exe file.

  • Choose I have read and ACCEPT the terms of the License Agreement.

  • Uncheck Send information about my setup experiences to Microsoft Corporation.

  • Click Install.

  • Wait.

  • Click Exit.

2. Microsoft .NET Framework 3.5

2.1. Windows 8.1 and later

2.1.1. Enable

  • Open Control Panel > Programs and Features.

  • Select Turn Windows features on or off.

  • Check .NET Framework 3.5 (includes .NET 2.0 and 3.0).

    ■ .NET Framework 3.5 (includes .NET 2.0 and 3.0)
  □ Windows Communication Foundation HTTP Activation
  □ Windows Communication Foundation Non-HTTP Activation

  • Click OK.

  • Windows 10: Select Let Windows Update download the files for you.

  • Wait about 10 minutes.

  • Note: This may fail with the following error in case .NET Framework 3.5 has been removed from Windows. Then try the installation instead (see next section).

    Windows couldn't complete the requested changes
The changes couldn't be completed. Please reboot your computer and try again.
Error code: 0x80072F8F
Error code: 0x800F0954

  • Click Close.

  • Close Programs and Features.

2.1.2. Installation

  • Start File Explorer.

  • 64-bit Windows 8.1:

    • Select the W:\Images\Windows\Windows 8.1 folder.

    • Right-click the en_windows_8.1_enterprise_with_update_x64_dvd_4065178.iso file.

    • Select Open with > Windows Explorer to open a new X: drive with its contents.

  • 64-bit Windows 10 22H2:

    • Select the W:\Images\Windows\Windows 10\22H2 folder.

    • Right-click the en-us_windows_10_business_editions_version_22h2_x64_dvd_8cf17b79.iso file.

    • Select Open with > Windows Explorer to open a new X: drive with its contents.

  • Enter the following commands at a Command Prompt with administrative privileges.

    Dism.exe /online /enable-feature /featurename:NetFX3 /All /Source:X:\sources\sxs /LimitAccess

  • Right-click the X: drive and select Eject.

  • Close File Explorer.

3. Microsoft .NET Framework 4.5

3.1. Windows Vista and later

  • Run the dotnetfx45_full_x86_x64.exe file with administrative privileges.

  • Check I have read and accept the license terms.

  • Click Install.

  • Wait.

  • Click Finish.