Crashing UE4

Can somebody say me why UE4 is still crashing? I only launch it, and it in random time crash. I cant do anything because it always crash

Does your system meet the minimum requirements to run UE4?

My notebook has 8 GB ram, CPU is intel core i7 -8550U and GPU is AMD Radeon 520 Graphics with 2GB GDDR5

Can someone help me?

For tech support please create a post on AnswerHub. Make sure to post the crash log and write as much detail as possible, such as what you were doing when it crashed, your computer’s specs, the engine version you are using, and anything else that may help tech support resolve your issue as quickly as possible.