The latest version .NET framework offline installer for Windows is available now. You can download it for free from the given downloading link below. The latest setup is compatible with Windows 32 bit and 64 bit OS. It is also available for other operating systems. You can download it directly from below here.
Note: you can download the .NET Framework 4.9 latest for Windows here
The latest version .Net Framework v4.8 standalone installer for Windows below.