You can use the Official Microsoft .NET Framework 4 (Standalone Installer) for systems without a constant internet connection, or the Web Installer if you are online.
Also look for KB2600211 under Installed Updates in Control Panel. net framework 403019 windows 7 64 bits extra quality
If you encounter errors during installation, such as "Installation Did Not Succeed," try these steps: You can use the Official Microsoft
The phrase "net framework 403019 windows 7 64 bits extra quality" appears to be a slightly mistyped search string for the Microsoft .NET Framework 4.0.30319 Make sure to select the version that matches
: You can download .NET Framework 4.0 from Microsoft's official website. Make sure to select the version that matches your Windows architecture (in your case, 64-bit).
If the issue persists, use the (by Aaron Stebner) to completely remove failed installations. Step 3: Use the Offline Installer
The term "extra quality" in your request likely refers to the stability this specific patch provided. Before this update, the initial .NET 4.0 release had several issues with: