Yamaha KCA-M538F User Manual page 63

Delete the "Universal Serial Bus controller".
4
Right-click on "M538F USB High Speed Serial Converter" displayed under the
"Universal Serial Bus controllers" group, and select "Uninstall" from the right-click
menu.
Deleting the "Universal Serial Bus controller"
Right-click Right-click
Uninstall the driver software.
5
When the "Confirm Device Uninstall" dialog box appears, select the "Delete the
driver software for this device" check box and click [OK].
After uninstalling, click the
"Confirm Device Uninstall" dialog box
Select Select
3.4 Windows 8/Windows 8.1
Click Click
button to close the Device Manager.
Click Click
3. Uninstalling the driver software
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