Microsoft .NET Framework 4.5.2 Offline Installer is a 66.8 MB package that allows you to install the framework on computers without an active internet connection. It is a highly compatible, "in-place" update for systems already running .NET Framework 4, 4.5, or 4.5.1. Official Download Links
If you encounter issues during the installation process, here are some troubleshooting steps: download microsoft net framework 4.5 2 offline installer