Hi all :
I have this problem on and off.
It is ok this time and next time can be bad that the USB device cannot detect by Win 7 64bits. It is OK at Win Xp all the times.
I referred to previous posts for this problem and delete the VID_0781 by REG_EDIT, also try uninstall the Device at the Computer Hardware and re-install the Device. I also did the replacement of usbstor.inf at c:\windows\inf from other subfolder.
The result is intermittent that it is Ok for this time and not Ok at other times. It is really wasting a lot of time to try this and that and the result is intermittent.
Can anybody or Sandisk people come out a good and permanent solution for this problem?
Thanks and best regards,