Download .NET Framework 3.5 Windows 10 64-bit Offline Installer: A Complete Guide
Type or paste the following command into the window. Replace the letter D: with the actual drive letter of your mounted installation media:
: Ensure the installation media matches your installed Windows 10 version and architecture (64-bit) for the best results. Media Creation
, replacing D: with the actual drive letter of your installation media:
: Install the framework on completely isolated or air-gapped computers. Download
Download the script, right-click, and run as Administrator. 2. Official dotNetFx35setup.exe (Microsoft)
Once the progress bar reaches 100%, you can verify it's active:
Look at the top of the list for .
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This method is Microsoft-supported, requires no active internet connection on the target machine, and works exclusively for 64-bit versions of Windows 10.
:You can download the full service pack package directly from the Official Microsoft Download Center . This is a "full package" (approx. 231 MB) that does not require an active internet connection during the installation process once downloaded.
Right-click the button and select Command Prompt (Admin) or Windows PowerShell (Admin) .
Note: Always scan third-party executables using an updated antivirus or VirusTotal before running them on your system. Troubleshooting Common Offline Installation Errors Error Code 0x800F0906, 0x800F081F, or 0x800F0922 This public link is valid for 7 days
: Version 3.5 includes .NET 2.0 and 3.0.
If the tool returns registry values including Install = 1 , the framework is active and ready to support your software. Share public link
: Open "This PC" and check the drive letter assigned to the mounted ISO or USB (e.g., Step 2: Use the DISM Command Search for in the Start menu, right-click Command Prompt , and select Run as administrator Type or paste the following command, replacing with your actual drive letter from Step 1:
Open and note down the exact Drive Letter assigned to the mounted media (e.g., D: , E: , or F: ). Step 2: Run the DISM Command