The problem that are facing some people here does not depend on the OS win 7 or 10 or mac, it's q question of hardware.
The old renpy only needed opengl version 2.x that is supported by all video cards since a long time, the problem is that the new renpy needs opengl 3.0 support and some old video card don't surpport it.
You can see there to know how to check your card:
You must be registered to see the links
But if your PC is only 2 years old it should support opengl 3.0, only card that are older than 10 years may not support it
Some other helpfull links :
You must be registered to see the links