The .NET Framework 4.6.2 is a highly compatible, in-place update to versions 4, 4.5, 4.5.1, 4.5.2, 4.6, and 4.6.1. Whether you are a developer building modern applications or an IT administrator maintaining legacy systems, having the offline installer is essential for environments without reliable internet access.
While the web installer is a small file that downloads components during setup, the offline installer (also known as the standalone redistributable) contains all the necessary files in one package. framework 4.6.2 offline installer
On older systems like Windows 7, you may need to update the Root Certificates to allow the installer's digital signature to be verified. Developer Considerations in-place update to versions 4