Display message "An old device driver is already installed" during installation

An older version of the device driver is already installed.
Uninstall the installed device driver, and then install it again.


In the case of "API-DIO(WDM) Ver.10.30 or earlier" was installed

 

The way to uninstall depends on the installed the device driver version.

The installed device driver

The way to uninstall

API-AIO(WDM) Ver.8.60 or later

API-DIO(WDM) Ver.10.40 or later

API-CNT(WDM) Ver.7.20 or later

API-SMC(WDM) Ver.6.10 or later

API-CAN(WDM) Ver.1.40 or later

API-GPIB(WDM) Ver.4.90 or later

API-ZM(WDM) Ver.1.40 or later

API-TIMER(WDM) Ver.3.90 or later

Please refer to [Setup Driver Environment]-[Modify and Uninstall]-[Uninstall] topic.

API-AIO(WDM) Ver.8.50 or earlier

API-DIO(WDM) Ver.10.30 or earlier

API-CNT(WDM) Ver.7.10 or earlier

API-SMC(WDM) Ver.6.00 or earlier

API-CAN(WDM) Ver.1.30 or earlier

API-GPIB(WDM) Ver.4.80 or earlier

API-ZM(WDM) Ver.1.30 or earlier

API-TIMER(WDM) Ver.3.80 or earlier

Please refer to [How to uninstall for older version] topic.