Installation freezes computer after 30s

Hi, I successfully downloaded Unreal Studio and started to download and install UE 4.20. After cca 15 % my whole computer stucked and I could only hard-restart my computer. After restarting and trying to reinitiating downloading my computer stucked again. After another hard-restart I didn’t even have to open the Unreal Studio and my computer stucked after 30 seconds. I had to (very quickly) uninstall the Unreal studio and I don’t know what I was doing wrong. Can you help me, please?
My computer should be able to run UE4 without problems according to minimal requirements.