Epic Games Launcher black screen-win10 64-intel 4600

Hello,
As mentioned in the title i got a problem which seems common.
The app does launch,after adding " -OpenGL", but in black.
I can find buttons and E-mail-password boxes with mouse pointer and can enter my account but the new bigger page that comes out is also in black.
This is the first time installing Epic app as i wanted to download Unreal Tournament game that seems downloadable only through Epic Launcher.
I’ve tried what are listed in [here][1]
Screenshots for the problem:

[Here is a zip file contains logs and DxDiag files][4]

Hope i can find any work around for this issue or any way to download the game w/o the need of launcher.
Thanks in advance

Hello,

I’m sorry that you are having an issue with the Epic Games Launcher. In order for us to offer the best support, we have recently modified the process for how Epic Games can help troubleshoot your Launcher issue. Please visit http://help.epicgames.com/ for technical support, here you can find information and solutions for common issues, as well as a contact form if you still need additional assistance. To access the contact form, please use the “Email Us” button under the “Contact Us” section. Thanks!

Have a great day