!link! Download Net Framework 3.5 Windows 10 64 Bit Offline Installer

To install .NET Framework 3.5 on Windows 10 (64-bit) without an internet connection, you must use the original Windows 10 installation media (ISO or USB). Windows 10 does not provide a standard standalone executable installer for version 3.5 like it does for newer versions. Official Offline Installation Method (DISM)

Once you've downloaded the offline installer, follow these steps: To install

.NET Framework 3.5 Offline installer for Windows 10 - Microsoft Q&A Maria laughed

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs : Enables all parent features of .NET 3.5. /LimitAccess but it fails frequently due to:

If you see an error message saying "Your PC needs to be updated to install .NET Framework 3.5" or "The following feature couldn't be installed," don't panic. The most reliable solution is the .NET Framework 3.5 Windows 10 64-bit offline installer.

Still not working? Enable .NET 3.5 via PowerShell

• Open PowerShell as Administrator and run:

  Enable-WindowsOptionalFeature -Online -FeatureName "NetFx3" -Source "C:\OfflineInstall\sxs" -LimitAccess
  

Maria laughed. "Don't download from random sites, Leo. The safest offline installer is already on your Windows 10 installation media or ISO file. It's a Windows feature, not a separate download."

"The referenced assembly could not be found"

• Cause: Antivirus or Windows Defender blocking the installation.
• Fix: Temporarily disable real-time protection, run the DISM command, then re-enable.

The Problem: Online Installer vs. Offline Installer

Windows 10 offers an online installer. When you enable .NET 3.5 via "Windows Features," Windows Update downloads the required files. This sounds easy, but it fails frequently due to: