The .NET Framework 4.8.1 is the final version of the classic .NET Framework. Microsoft transitioned to the unified .NET 5, 6, 7, and 8 platforms afterward. If you are searching for a .NET Framework 5.2 offline installer, you are likely looking for either the latest 4.8 series update or the modern .NET 5.0 runtime.
For a classic .NET Framework offline package, the syntax generally looks like this: NDP48-KB4486129-x86-x64-AllOS-ENU.exe /q /norestart Use code with caution. net framework 52 offline installer