After connecting STU-430 tablet to the PC on Windows 8.1, the tablet will show Wacom logo and then turn off soon. This is an issue that along with the change of the USB supply specifications in Windows 8.1 environment, STU tablet will not get the power suply to stop work. To solve it, please install the driver on AP driver site below.
http://www.wacom.asia/en/tablet-drivers http://www.wacom.asia/en/tablet-drivers?tid_1=253&tid=162&=Apply