I’ve been using TeamViewer for a couple of years to remotely log into my computers. I started using TeamViewer exclusively after LogMeIn ended their free version of the service. TeamViewer is free as long as it is for personal use.
Recently, I accidently did not select personal use when installing it on my Surface Pro 3. At the end of the trial, I tried to uninstall and reinstall for personal use. This didn’t work.