Frozen UE4 and 13 running UE4 Editors in the same time.

Why, when I trying launch only one UE4 or shortcut of Project file by double-click it spam a lot of UE4 in process that I found in Task manager?
It Frozen my editor everytime and overload CPU to 96-99% (16 virtual cores) including GPU (8gb).

I just want back to my work, now I have nothing to do.