great support | Cypress Semiconductor
Had USB driver problems with all Cypress Psoc4 development tools (miniprog,pioneer kit, 42 and BLE kits).
None of then working at my Win8.1 desktop..(all working at my DELL notebook win7p).
Entered support ticket and after 3 long session the problem was found to be 3 bad cypress USB driver,seems somthing got corrupted???.
Now its working fine..
Thanks to great support fron Cypress..
Thanks Naman,Jobi and Andriy