Epic Launcher Installer download problem !

I have problem with epic launcher when i download the program it download in Program Files (x86) ,but my system is 64 bit and i don’t find the win64 file anywhere in the program files. When i run the program it say The application was unable to start correctly (0xc000007b). Click OK to close the application.
System> Core i5-7300HQ 2.50GHz
8 GB Ram
WIN-10 _ 64-bit Operating System
NVIDIA GeForce GTX 1060
I tried to download the program in another PC and it downloaded very well but after the program downloaded there was an update which this not happened on my PC.