I have the same problem . The drivers are not installing. I used Win 8.1 64 bit and 32bit, Win 7 64 and 32 bit. I reinstalled Windows 3 times
Can someone give a link to Walton Primo S2 Flashable Stock Rom please or a backup from a working device so i can use TWRP 188.8.131.52 to unbrick my device.
Ps. sorry for my bad english