Download Net Framework 3.5 Windows 10 64 Bit Offline Installer [patched] -

The most reliable way to install .NET 3.5 offline is by using the Deployment Image Servicing and Management (DISM) Microsoft Learn Mount the Windows 10 ISO or insert your installation USB drive. File Explorer and note the drive letter assigned to the installation media (e.g., Start menu , right-click on Command Prompt , and select Run as administrator Type the following command, replacing with your actual drive letter:

The 231 MB file is small enough to keep on a USB key or cloud storage (OneDrive, Google Drive) for emergencies. The most reliable way to install

The Deployment Imaging Service and Management (DISM) tool is built into Windows 10. It can install .NET 3.5 directly from the Windows installation media or a network share. right-click on Command Prompt