The correct answer appears to be NO. The driver used by the MyDrive update software was the only driver on my computer that was marked "Device not migrated" during my Windows 10 upgrade. Subsequent discussions with Tomtom Support have failed to find a way to allow my Via 620 to connect to the update program. I have also tried connecting using a different Windows 10 machine, but with the same result. Both of these computers had been able to update my Tomtom when they had Windows 7 installed. I think Tomtom need to come up with a new driver that works with MyDrive Connect on Windows 10.
Pile of rubbish. The issue is with the USB drivers in most cases and nothing to do with the TT drivers. Get in touch with your PC's manufacturer. And W10 is rubbish for many people, even without TT devices. It is clearly a Microsoft issue.
They don't say as far as I'm concerned. Many USB3 ports work fine, where the PC manufacturers adopted the standard properly and even provided proper drivers. Have a look if there is an update for your PC's BIOS and/or switch the USB ports to legacy/compatible mode in the BIOS.
Yes, but you said TomTom says to avoid. I don't work for TomTom, so quoting from me and blaming on them makes also no sense.
If you want to go into the USB3 issues, read this article:
Also have you tried to get in touch with TT CS? Maybe they have some other troubleshooting tip for you. The most common ones and their solutions are in my post above, but they might have a more extensive KEDB.