Hi
Having tried the various driver's I picked up a "pull" (Broadcom BCM 4313 / BCM94313HMGB WiFi / Bluetooth adapter HP # 600370-001.
This the "other" of the two adapters that came with various HP laptops.
Uninstalled both sets of drivers, shutdown and removed the Ralink/Motorola card, powered up into the bios so as to "register" that NO network/Bluetooth was installed, saved changes to bios and shutdown again. Installed the Broadcom 4313 card, powered
up into the bios again to "register the addition of the new card, saved configuration and completed boot into windows 8.
W8 recognized both the WiFi and the Bluetooth and installed working drivers!!!!!!!!!!!!!!!
NOTE: Booted back into W7 and W7 was also able to install working drivers but had to go to the web to get them.
Shame on Motorols