Point it to the folder where you extracted your 64-bit drivers.
If you have a 32-bit Win7 driver:
: Since Techwell (later acquired by Intersil/Renesas) produced the chip and not the card, the most reliable driver often comes from the Original Equipment Manufacturer (OEM) of your specific DVR card. Compatibility Warning : Be cautious with 32-bit drivers, as they will dvr card techwell tw6802b driver for win 7 64 bit hot