Use to pull source files locally via DISM from an ISO. 0x800F081F The source files could not be found at the specified path.
Method 3: Enable via Windows Features (Requires Internet Intermittently)
: Use Method 1 described above. Ensure that the /LimitAccess switch is included in your command line, which forces Windows to look only at your offline source drive instead of trying to reach the internet. Error Code 0x800F0922
Press Win + X , select Command Prompt (Admin) or Windows Terminal (Admin) .
Some applications, especially older ones, still require the .NET Framework 3.5 to function correctly. If you're trying to run an application that was built using .NET Framework 3.5, you may encounter errors or compatibility issues if it's not installed on your system. Use to pull source files locally via DISM from an ISO
Many older software applications, legacy business tools, and classic PC games require to run properly. While Windows 10 and Windows 11 come pre-loaded with newer versions like .NET Framework 4.8 or .NET 8, they do not always activate the 3.5 runtime by default.
Step 2: Run Deployment Image Servicing and Management (DISM)
You are setting up a computer in a secure, air-gapped, or low-connectivity environment.
Type the following command (replace D: with your actual drive letter): Ensure that the /LimitAccess switch is included in
Look closely at the top of the list and check the box directly next to . Click OK .
Copy and paste the following command into the window (replace D: with the actual drive letter of your Windows installation media):
If your offline installation fails, it is usually tied to conflicting system configurations or mismatched installation media versions. Error Code 0x800F0906 or 0x800F081F
Installing .NET Framework 3.5 offline on Windows 10 and 11 requires using a Windows installation source, as the standard online installer often fails without an internet connection. This version is essential for running older applications built for .NET versions 2.0 and 3.0. Microsoft Learn Method 1: Using Windows Installation Media (Recommended) If you're trying to run an application that was built using
Click the button to save the standalone installer package ( dotnetfx35.exe ).
The safest way to get the standalone installer package is directly from Microsoft’s official servers. This package does not require an active internet connection during the actual installation phase on the target machine. Step-by-Step Download and Setup Visit the official . Search for .NET Framework 3.5 Service Pack 1 (Runtime) .
Windows 10 and Windows 11 operating systems already carry the exact source files required for .NET Framework 3.5 inside their original installation media (ISO file, bootable USB, or DVD). You can extract and install it locally using the Deployment Image Servicing and Management () command-line tool. Prerequisites:
The .NET Framework 3.5 is a software framework developed by Microsoft that provides a large library of pre-built functionality, including classes, interfaces, and value types. It's an essential component for running applications that rely on .NET, such as games, productivity software, and more. The .NET Framework 3.5 includes many features and improvements over its predecessors, including: