Touch PC Windows 8.1 not reconizing KTouch

Hi,

Kobo Touch N905C, Firmware 3.1.0.
PC desktop Windows 8.1 Pro+WMC

Problem: None known until after Windows Updates 8.1
KT acknowledges that is connected to the PC, but the PC is not recognizing the KT.
Has anyone had or has the same problem? Any tips?

Thanks in advance,