reg query "HKLM\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full" /v Release If Release DWORD value is or greater, .NET 4.6.2 or a higher version is installed.
Right-click file → Properties → Digital Signatures tab → Select Microsoft signature → Details → “This digital signature is OK” net framework 4.6.2 offline installer
Example hash (verify against official source): net framework 4.6.2 offline installer