[portable] Download Net Framework 3.5 Windows 10 64 Bit Offline Installer Jun 2026

: Mount a Windows 10 ISO file or insert a bootable USB drive.

: Search for cmd in the Start menu, right-click Command Prompt , and select Run as administrator . : Mount a Windows 10 ISO file or insert a bootable USB drive

: Press the Windows Key , type cmd , right-click it, and select Run as Administrator . right-click Command Prompt

Installing .NET Framework 3.5 on Windows 10 (64-bit) without an active internet connection typically requires using (such as an ISO file or USB drive) or the official Standalone Installer if you can download it beforehand from another machine . Method 1: Using Windows 10 Installation Media (Recommended) : Mount a Windows 10 ISO file or insert a bootable USB drive