Get to activation screen, remains blank for a while then popup says I have no internet connection. Have rebooted, reinstalled, turned off firewall, run as administrator, all fails and won't let me get past the activation screen, have used TurboTax for 15 years, never a problem with CDs, even on this current 4 year old Windows 10 PC, only this years, first time forced to download and register. Can't seem to find help anywhere...