On Windows 7, you might need to update your "Root Certificates" if the installer fails with a "Timestamp signature and/or certificate could not be verified" error.
Even if the installer doesn't prompt you, it is highly recommended to reboot your system to ensure the new registry keys and libraries are properly loaded. Common Installation Issues Download Microsoft Net Framework 4.6 2 Offline Installer
The offline installer includes all components for both x86 (32-bit) and x64 (64-bit) architectures. Supported Operating Systems On Windows 7, you might need to update
Download Microsoft .NET Framework 4.6.2 Offline Installer: A Complete Guide On Windows 7