Hello and welcome to justanswer. My name is***** will be assisting you today. Please give me a moment while I review your question.
USB 3 port have backward compatibility which means you can connect and use USB 2 devices so its not the USB port issue to troubleshoot more could you please answer the following questions.
Before updating your computer Tom tom used to work am i correct?
Which Tom tom device are you trying to connect to the PC? let me know the exact model of it
Which is the current operating system installed in the PC.Is it Windows Vista, Windows 7, windows 8, Windows 10 ?
Note: - Please reply using the box below.