Type or copy the following command into the window. Ensure you replace D: with the actual drive letter of your Windows media:
To install .NET Framework 3.5 offline on Windows 10 64-bit, you must use the original Windows installation media. Unlike older versions of Windows, the only supported offline method for Windows 10 is through the deployment of "Side-by-Side" (SxS) files found on your OS installation disk or ISO.
Place the installer folder on your desktop or C:\temp . Ensure the path has no spaces. Net Framework 3.5 Offline Installer Windows 10 64 Bit
You cannot simply download a single .exe from a random third-party site without risk (malware is rampant). The safest method uses Microsoft’s own (ISO file). Here is the industry-standard, secure method:
Microsoft publishes the offline package in the . Search for "Windows 10 64-bit .NET Framework 3.5 cab" . You will find a file named: Type or copy the following command into the window
@echo off Title .NET Framework 3.5 Offline Installer echo Readying the installation... for %%I in (A B C D E F G H I J K L M N O P Q R S T U V W X Y Z) do if exist %%I:\sources\sxs set DriveLetter=%%I if defined DriveLetter ( echo Found installation media on drive %DriveLetter%: Dism /online /enable-feature /featurename:NetFX3 /All /Source:%DriveLetter%:\sources\sxs /LimitAccess ) else ( echo Error: Windows 10 Installation Media not found! echo Please insert a USB or mount an ISO and try again. ) pause Use code with caution. Click . Change the "Save as type" dropdown to All Files (*.*) . Name the file InstallNet35.bat and click Save .
Mount the Windows 10 ISO or insert the installation media and note its drive letter (e.g., D:). Place the installer folder on your desktop or C:\temp
Here are the most effective methods to install .NET Framework 3.5 offline on your Windows 10 64-bit system.
Once the process reaches 100% and displays "The operation completed successfully," a system restart is usually recommended, though not strictly required for the runtime to become functional. Verification can be performed by navigating to: Control Panel > Programs and Features > Turn Windows features on or off Here, the box next to ".NET Framework 3.5 (includes .NET 2.0 and 3.0)" should be filled.
Click . Windows will pull the necessary installation files from Windows Update. Troubleshooting Common Installation Errors