You can now run legacy accounting software, classic games, and proprietary engineering tools without ever connecting to the internet. Bookmark this guide for your next PC refresh, or share it with your IT department.
The safest and most official "offline installer" payload for .NET Framework 3.5 is already inside your official Windows 10 or Windows 11 installation media (ISO file or USB boot drive). It lives inside a folder named sources\sxs . Prerequisites You can now run legacy accounting software, classic
You can download the setup files from an online computer and move them to your offline computer using a flash drive. Only download these files from official Microsoft websites to keep your computer safe. You can now run legacy accounting software, classic