Installer For Windows 10 11 — Download .net Framework 3.5 Offline

For users without immediate access to an ISO, Microsoft does host a file named dotnetfx35.exe on its download center. However, as noted, this is not a true offline installer. If you run it on a computer without internet, the installation will fail. But you can use it to pre-download the necessary CAB files on an internet-connected machine and then transfer them. This is more complex and error-prone than the DISM+ISO method. Therefore, it is not recommended for most users.

Now, we will install .NET 3.5 directly from that CAB file.

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs

What this command does:

Expected result: You should see a progress bar (0.0% to 100%). The operation will complete in 2–5 minutes. No internet connection required.

Absolutely. The sxs folder is not product-key specific. You can copy microsoft-windows-netfx3-ondemand-package.cab to a USB drive and run the DISM command pointing to C:\sxs on your offline machine. For users without immediate access to an ISO,

This method works 100% offline and does not touch Windows Update.

This indicates a Secure Boot or BIOS issue. What this command does:

If you have downloaded the standalone package or if you have a Windows 10/11 Installation USB/DVD handy, you can install it using the Command Prompt. This is the most reliable method that bypasses Windows Update glitches.