Net Framework 3.5 Sp1 Offline Installer Hot! Now

You can download the complete standalone installer from the Microsoft .NET Framework 3.5 SP1 (Full Package) page .

: Insert your Windows installation USB or double-click your Windows ISO to mount it (e.g., as drive Open Command Prompt and select Command Prompt (Admin) PowerShell (Admin) Run the DISM Command : Enter the following command, replacing with your actual drive letter: powershell net framework 3.5 sp1 offline installer

If you have a Windows 10/11 ISO or USB installation media, the .NET 3.5 SP1 sources are included in the sources\sxs folder as microsoft-windows-netfx3-ondemand-package.cab . This is the most reliable offline source for modern Windows. You can download the complete standalone installer from

As of 2024, Microsoft still hosts the full offline package at: net framework 3.5 sp1 offline installer