Could you clarify the name of the you're trying to install? I can help you find the specific version it requires.
This post clears up the versioning myth, explains where “4.3” actually appears, and provides authoritative offline deployment solutions for production environments. net framework 4.3 offline installer
— use these offline installers
Because 4.3 does not exist, users typically need one of the following official releases: Install .NET Framework on Windows - Microsoft Learn Could you clarify the name of the you're trying to install