*Help* on fixing maplestory problems

My computer crashes during plying maplestory. I am not sure of the cause of it. Thre is totally no spyware or viruses that causes it to crash nor any malware.And the computer is not running slow, it runs fast with the help of removing junk files and others. Can anybody advise me on how to solve this pc crash. Audition oso works the same as maplestory, which means i plyed Audition oso crash same thing. And awhile the computer automatically reboots.