Download ((install)) Net Framework 35 Offline Installer For Windows 10 11 Free Jun 2026

In the "Windows Features" window, look for the first item on the list: . Check the box next to it.

When downloading the .NET Framework 3.5 offline installer, it is always safest to obtain it directly from Microsoft:

Copy and paste the following Deployment Image Servicing and Management (DISM) command into the window. Replace X: with the exact drive letter of your mounted Windows ISO:

Get-WindowsCapability -Online -Name NetFx3

如果你手边有原版安装盘或ISO镜像，可以采用此方法。 In the "Windows Features" window, look for the

Copy and paste the following Deployment Image Servicing and Management (DISM) command into the prompt. Ensure you replace X: with your actual mapped drive letter:

You receive errors like "The following feature couldn't be installed: .NET Framework 3.5 (includes .NET 2.0 and 3.0)" (Error code 0x800F081F).

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Microsoft provides a standalone (offline) installer for .NET Framework 3.5. However, note that even this "offline" installer may still try to download language packs from Windows Update. For a true offline installation on Windows 10/11, is more reliable. Replace X: with the exact drive letter of

If you have no internet access, you can install it using a Windows ISO or installation USB. Install .NET Framework 3.5 on Windows 10 - Microsoft Learn

Method 1: The Official Microsoft Dotnet Offline Installer (Recommended)

: Double-click your Windows 10 or 11 ISO file to mount it as a virtual drive. Note the assigned drive letter (for example, D: or E: ).

If you find command line prompts intimidating, several well-known developers have built free automation scripts that wrap the DISM commands into a graphical user interface. Microsoft provides a standalone (offline) installer for

. Because of this, standard offline installer executables (like dotnetfx35.exe

Press . A progress bar will appear in the command prompt. Within two to three minutes, you should see the message: "The operation completed successfully."

If you have an internet connection, you can simply toggle it on without downloading a separate installer. Microsoft Learn Open the Start menu and search for "Turn Windows features on or off" .NET Framework 3.5 (includes .NET 2.0 and 3.0) in the list. Check the box, click

/enable-feature /featurename:NetFX3 : Tells Windows to enable the specific .NET Framework 3.5 feature.