Transfer this file to your target Windows 10 or Windows 11 computer using a USB drive.
Look at the return value. If the output shows Install REG_DWORD 0x1 , the framework is successfully configured and active on your system. Your older applications and legacy video games will now launch immediately without error. If you'd like, let me know: Which you are running Any specific error codes you are encountering Whether you have access to a Windows ISO file Share public link
In the window, locate the first item on the list: .NET Framework 3.5 (includes .NET 2.0 and 3.0) . Check the box next to it. Click OK .
The full package contains all components needed for a local installation without an internet connection during the setup process. Transfer this file to your target Windows 10
Place this .bat file in the same folder as your NetFx3.cab file.
for IT pros or anyone who frequently sets up older software on fresh Windows machines. The offline installer is a lifesaver when internet is slow or absent. Just be ready for a slightly technical install process.
Locate the option labeled at the top of the list. Your older applications and legacy video games will
Microsoft provides a direct, trusted offline installer for .NET Framework 3.5 SP1.
Click the button to download the genuine dotnetfx35.exe package.
: Once the progress reaches 100%, the feature is enabled. How to Install .NET Framework 3.5 on Windows 11 [Tutorial] Click OK
After installation, it is good practice to verify that the framework is correctly set up.
Sometimes, things don't go as planned. Here are solutions to the most frequent issues you might encounter.
If you use Method 2, your Windows ISO or USB media must match the exact version of Windows installed on your PC. You cannot use a Windows 10 ISO to install .NET Framework 3.5 on a Windows 11 machine. Verification: How to Check if Installation Was Successful
The .NET Framework 3.5 includes versions 2.0, 3.0, and 3.5. Many legacy apps (e.g., AutoCAD 2013, SQL Server 2008, older games) need it to run on Windows 10 or 11. The “offline installer” lets you install it without an internet connection—critical for PCs with limited or no web access.