When installing the setup I don't get the Mapleroyal.exe

There is nothing I can help with, it's your security programs nothing else.

 

If I do that the Virus I had will return, which means I have to install AVG again and it will be the same.

 

Correct.
Can you restore before you got that virus ?

 

So I'll just wait for source update. Hopefully there will be a new exe file that wont get deleted by itself.

 

No I can't.

 

We tried to explain you already, the .exe file will be recognize (by your security program) as a potential danger for you computer so it will get deleted even after new source is released.

 

Fixed when I downloaded a AVG remover. (it wasn't deleted completely and it was hiding in my files)