Did you have already followed the step like this?
https://www.wacom.com/en-us/support?guideTitle=How-do-I-register-my-Wacom-device%3F&guideId=009-946
If yes but still doesn't work, try to search on this link, maybe it will helps you ...
https://www.wacom.com/en-us/support?guideTitle=I%27m-having-trouble-registering-my-tablet%2C-what-do-I-do%3F&guideId=009-944
Oh, and try to read the comments on this page,
https://www.youtube.com/watch?v=DhCgVLKiSjc
some of them also has the problem when registering the device so maybe it will helps you
Thank you guys I hope it will work
Hey guys it’s not really manga related but I wanted to ask if any of you used or are using Wacom intous pro (small) I literally can’t set it up I tried searching online but can’t find solution. I have downloaded the drive but can not register my device:( If you can help than please let me know. Thank you