Unknown Device: USB2.0-CRW
The unknown device listed in device manager as 'USB2.0-CRW' is the card reader that is built into the M770 and M780 All in One chassis.
Install the latest tested driver from the Stone Driver Finder.
Article ID: 89
Last updated: 08 Jan, 2020
Posted: 21 Jun, 2013 by Paul Watkins
Updated: 08 Jan, 2020 by Andrew Sharrad