Microsoft .NET Framework 4.6.2 Preview (Offline Installer) for Windows 7 SP1, Windows 8.1, Windows 10, Windows Server 2008 R2 SP1, Windows Server 2012 and Windows Server 2012 R2

The Microsoft .NET Framework 4.6.2 Preview is a highly compatible, in-place update to the Microsoft .NET Framework 4/4.5/4.5.1/4.5.2/4.6/4.6.1. The offline package can be used in situations where the web installer cannot be used due to lack of internet connectivity.
Source and download: