The .NET Framework is a software framework developed by Microsoft that provides a large library of pre-built functionality, a virtual execution environment, and a set of services that can be used by developers to build a wide range of applications. The .NET Framework is an essential component of the Windows operating system, and many applications rely on it to run properly.
Version 4.7.2 is part of the .NET Framework 4.x family. It is not the newest version (4.8 is newer), but it is a Long-Term Support (LTS) version that remains incredibly popular for legacy enterprise software, custom line-of-business apps, and many modern games.
The legitimate offline installer for Windows 10 64-bit is approximately (compressed) or the full layout package is ~478 MB . If you see a file that is 1 MB or 5 MB, it is the web installer, not the offline version.
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