Unreal Engine won’t launch then shows Error code (0xc000007b) , Windows 8.1 ,64Bit
Please Help As Fast as u can 
Hi pedro9,
0xc000007b is a runtime error code. If you read the accepted answer from this thread, you’ll see that it refers to a problem with the binaries being used to run the editor. The steps you should follow to find the cause of the error are explained in detail in that answer, but post again in here if any part of that answer is unclear.