Net Framework 3.5 Offline Installer Windows 10 64 Bit [verified] May 2026

To install .NET Framework 3.5 offline on a 64-bit version of Windows 10, you do not need to download a third-party installer. The necessary files are already included in your original Windows 10 installation media (ISO or USB).

Standard installers often require an active internet connection to download missing components from Windows Update. If you are in an environment without internet or encounter errors during the standard installation, the offline method using the \sources\sxs folder from a Windows 10 ISO is the official workaround. Prerequisites Net Framework 3.5 Offline Installer Windows 10 64 Bit

Part 10: Alternative - Using a Third-Party Repack (Proceed with Caution)

Some reputable tech forums host repacked offline installers. Tools like "Microsoft .NET Framework 3.5 Offline Installer" by MajorGeeks or TechPowerUp have been verified by communities. However, always check SHA-1 hashes against Microsoft’s official reference. For enterprise environments, stick to the DISM + ISO method. To install

Wait for completion. You should see a success message when the feature is enabled. If you are in an environment without internet

Part 5: Troubleshooting Common Errors on Windows 10 64-Bit

Even with an offline installer, errors happen. Here are the top three fixes: