If you see this error message: 'The application was unable to start correctly' it's probably because you're trying to run a game or program and there's something not quite right.
Below are various methods, most of which are simple, which you can use to try and fix the 0xc000007b error. You may only need to one but in some cases you'll need a combination of them.
Typically you'll see this error when there's a mixing of 32-bit and 64-bit versions of Windows and applications.
Restart your computer
The first thing to try is restarting Windows. Sounds too good to be true, but it sometimes yields results.
Update .NET framework
In most cases it's Microsoft .NET framework causing the issues. You can download the latest version of .NET Framework from Microsoft.
When it's installed (or re-installed) reboot and try your app or game again.
Enable Administrator rights
Try running the game or application with admin rights. To do that, right click on the shortcut or the actual executable for the game, select Properties and open the Compatibility tab. Tick the 'Run this program as an administrator' box, and click on OK.
Reinstall the app or game
You can also try re-installing the game or program you're trying to run - simple but sometimes very effective.
Update Windows. In many cases Windows will automatically update, but to check, head to Control Panel and search for 'Windows Update'.
In later versions, including Windows 10, you can open the new Settings app (just search the Start menu or click the cog icon which appears just above the Windows logo when you click it in the bottom-left of the screen.
In the Settings app, click on Update & Security then you should see a button to check for updates:
Run chkdsk by opening cmd (search for it or select run in the start menu).
In the window type "chkdsk c: /f /r". If it is the primary windows disk, it will ask you to schedule it for next boot. When you restart, it will do a check before get to the login screen. Partitions or other drives can also be checked this way.
Reinstall DirectX. The way to do this depends on your version of Windows and which version of DirectX you need. There are full instructions on Microsoft's website.