Visit sometimes Easyshare CX7220 website we recommend. It will help you to use your LTM13C157 hardware to the fullest Toshiba extent.
There, you can download the latest LTM13C157 updates of firm ware and Easyshare CX7220 drivers for your CyberpowerPC GX1221 device. You can also create ExecuLabel LP350 restore points of your system in case of program failure. You would be able to retrieve initial state easily and try installing a LTM13C157 driver one more time. If you have an outdated CyberpowerPC GX1221 unit, you won’t be able to find the matching LTM13C157 driver thereto.