dism /online /add-package /packagepath:"C:\path\to\your\downloaded.cab"

This file is the complete redistributable package and is approximately 231 MB. While it is a full package, the most reliable offline installation method for Windows 10 and 11 remains the DISM method using the Windows installation media.

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

Once .NET Framework 3.5 is installed offline, you should to download any security updates for it. The offline installer includes only the base, unpatched version. Over the years, critical vulnerabilities have been discovered in older .NET runtimes, so applying updates post-installation is essential for a secure system.

This method is reliable, secure, and entirely offline after obtaining the ISO. It avoids the pitfalls of bootstrappers that silently try to phone home, and it works consistently across both Windows 10 and Windows 11. By understanding the distinction between a bootstrapper and a true offline source, you can ensure that your legacy applications run smoothly even in environments with no internet access.

user wants a long article about downloading the .NET Framework 3.5 offline installer for Windows 10 and 11. I need to provide comprehensive information, including methods, official sources, troubleshooting, etc. I'll search for relevant information. search results provide a variety of sources. I need to open the most relevant ones to gather detailed information. search results provide a variety of sources. I'll use them to structure a comprehensive article covering official download links, methods for offline installation (including DISM with CAB files and ISO), troubleshooting tips, and the latest changes. The article will be detailed and user-friendly. you see an "Install this feature" pop-up for .NET Framework 3.5, the process often fails on a machine without an internet connection. Installing it properly requires a specific type of offline installer that works with how Windows 10 and 11 are built.

PCs in secure environments or remote areas may lack consistent internet access.

How to Download and Install .NET Framework 3.5 Offline on Windows 10 and 11

The safest way to get the .NET Framework 3.5 offline installer is directly from Microsoft. This "Full Redistributable Package" includes all the files needed for a complete installation without further downloads.