Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP' -Recurse | Get-ItemProperty -Name Version -ErrorAction SilentlyContinue For the average Windows 10 64-bit user, do not search for a random “.exe” download . Instead, enable .NET Framework 3.5 directly from Windows Features . If you need a fully offline installation, use the DISM command with a Windows 10 installation ISO. Prepared by: [Your Name / Department] References: Microsoft Docs (docs.microsoft.com) – .NET Framework 3.5 on Windows 10