Compton, you might do a Web search for “ublox_a4_u5_usb_drv3264_install_ui” and download/install this driver.
On my W10 tablet, BktTimeSync starts and does a successful initial sync with the VK-172 dongle. But then it doesn’t seem to initiate any succeeding syncs, even though I configured it for 1 minute syncing. And if I try and initiate a manual sync, BktTimeSync hangs. It does this sequence every time I restart it. And as I said, under Windows 7 it does syncs every minute as expected and runs fine.