Yamaha KCA-M538F User Manual page 38

2.6 Windows 8/Windows 8.1
Disable the driver signature enforcement and start Windows.
7
When the computer restarts, the "Startup Settings" screen will appear. Press the [7]
key on the keyboard to disable the driver signature enforcement, and then restart
Windows.
"Startup Settings" screen (after restarting)
Insert the CD-ROM supplied with the USB cable into the CD-ROM drive.
8
When the setup program appears, click the [Exit] button to exit this program.
When installing the driver from the support software installation folder, it is not necessary to
insert the support software installation disc.
NOTE
9
Plug the USB cable into the USB port of your PC.
34
2. Driver software setup