hello ricky, alam kong nagawa mo na yung option na "prompt me each time to choose action" pero try this one, :
1. open My computer
2. right click CD/DVD drive or your memory reader (that appears as removable drive) then chose Properties
3. on Autoplay tab choose any option then on the bottom part, click restore defaults
or if this doesn't work,
repeat above steps 1 & 2
3. on Autoplay tab, choose the program that you want to use on that drive and DON'T just highlight it and press OK. double click it to force it to run that program on that drive.
see how it goes. it's not a virus thing, confirm first by updating your virus definition then run a scan.
shalom