Modify the Version string value from 4.0.30319.xxxx to 4.0.3019.xxxx . Do the same under HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\... for 32-bit apps.
By following these steps and troubleshooting tips, you should be able to successfully download and install the .NET Framework 4.0.3019 for Windows 7 64-bit systems and resolve common issues that may arise. Download Net Framework 4.0.3019 For Windows 7 64 11 Fix
Summary: .NET Framework 4.0.3019 is a specific build of Microsoft’s .NET Framework intended for legacy Windows apps. This guide explains where to get it, how to install it on Windows 7 x64, common errors (including KB updates and installation rollback), and fixes. Modify the Version string value from 4