Hi
this is what i would do to fix the problem there are several options and ways
start
type in device manager
when in device manager
have a look to see if you can see card reader in there
if not go up to the top row of writings and icons and hover your mouse over the 3/4 options on the right
one of them should say scan for new hardware
hit the scan tab
windows may or may not reconize the card at this stage but dont worry
if you can find it in device manager and it has a yellow warning sign on it
please double click it and go into the properties
then go into the driver
then try to update the driver from there
if it is in there please un install it
Now leaving the sd card in the usb
restart windows
maybe windows will then install/reinstall sd card driver
if not
please do all your windows up dates leaving the sd card in
if this does not work then please click on this link
www.sonyvail.com
go to support/downloads find your model and operating system
find the sd card driver
download it
install it
then restart laptop
hopefully all will be well
many thanks