I will not make any attempt to fix the HP reader and only share what I did next. I used a cheap USB card reader. For %7.88 at walmart I consider this an easy cheap and avoided having to talk to HP bargain.
Everytime I insert my Lexar Micro SDHC media card into my HP Pavilion ZV5410us Laptop I get a blue screen Message MACHINE_CHECK_EXCEPTION. I have installed the driver with the most current update from HP.com Does anyone have any idea why this is still happening. My other cards still work fine. I have several ranging from 128 mgs to 1 gig. The other cards, however, are not High Capacity.