Net Framework 4.3 Offline Installer -

The .NET Framework 4.3 does not exist; users seeking an offline installer should download the standalone .NET Framework 4.8 or 4.8.1. These offline installers enable installation on machines without internet connectivity, with the 4.8 version pre-installed on modern Windows 10 and 11 systems. For more details, visit Microsoft .NET

For .NET Framework 4.7.2

If you are looking for an offline installer in the 4.x family, you likely need one of the following official versions: net framework 4.3 offline installer

By understanding the versioning system and avoiding fake download sites, you will save hours of frustration and keep your system secure. net framework 4.3 offline installer

NDP48-x86-x64-AllOS-ENU.exe /q /norestart