My VivoSmart 4 is not found by Garmin Express. I have newest version of Express (V7.8.1.0). The Vivosmart 4 does NOT appear as a mapped Mass storage device on my Windows 10 PC. Device Manager shows me it as an Unknown Device. The Update Driver option finds no drivers on the PC and does not find USB drivers under the Garmin Express programs folder. I cannot find a current Win10 USB driver available from Garmin Support. The Old drivers mentioned are from 2015 and are referring to Win7 OS! The USB drivers for this device are not downloaded as part of Garmin Express install. I can NOT attach and upload data from my VivoSmart on my Windows 10 PC. Does anyone have any suggestions for this issue.