Why does my launcher keep crashing?

When ever i start to play i push launch and then it starts to load i gets past the first two screens and then when it goes full screen i keeps crashing this has been happening for the past 4-5 days it is becoming really annoying and will quite if i doesnt start working

If this question is regarding Fortnite:

This website is intended for UE4 developers to get technical assistance. For Fortnite issues, please visit: http://fortnitehelp.epicgames.com/

There you will find various troubleshooting articles and an Email Us button you can use to get in touch with the Epic support staff who can assist you further.

Any general questions regarding Fortnite should be directed to the Fortnite forums, located here:

If you are referring to the UE4 editor

Please provide us some details on your computer system. The easiest way is to provide us with a DxDialog report.

To create it click start and type dxdiag then press enter, then click the Save All Information button, and then attach a copy of it to your post using the small paperclip button above the textbox when posting here.

This will let us see what hardware and software you have installed, and will help us figure out why this is occurring.

Also, is this occurring the first time you try to launch the editor? Have you ever been able to launch the editor?

Thank you!