Re: Invalid-license-missing-DLL-d3dx9-43-dll
As you can see from the error message, there are at least some corrupt system files on your PC, and this is almost certainly the cause of the problem.
Fixing that is is possible, but a complete fresh installation of the Operating System is an option too.
If a fresh installation is a problem for you I would recommend a Windows repair installation, also called a in-place upgrade, that will allow you to keep your data and your applications.
Here you will find an Microsoft Video Guide about it.
Here is the Website to create the Install medium.
This is normally a very safe process, but you should make a full backup of all your important data anyway. (And not just before such on operation.) 😉
Make sure that "Keep Personal files and Apps" is marked before you click "install".
If you are unsure about a step, just ask! 😉
