Couple of things that have helped in the past ...
Uninstalled OS updates can cause issues with the TT program ... so make sure all WIN OS updates are installed and reboot your computer at least twice then try again.
Another thing seems to be what you had plugged into your computer at the time you loaded the program ... for instance a UBS connection of some kind. If you had one in put it back, if you didn't then remove it and try again.
