How do I fix Tor not opening?
If Tor Browser was working before and is not working now your system may have been hibernating. A reboot of your system will solve the issue. Delete Tor Browser and install it again. If updating, do not just overwrite your previous Tor Browser files; ensure they are fully deleted beforehand.
How do I open Tor after install?
Double-click the icon to start up Tor Browser for the first time.
Why can I not connect to Tor?
You might be on a network that is blocking the Tor network, and so you should try using bridges. Some bridges are built in to Tor Browser and requires only a few steps to enable it. To use a pluggable transport, click "Configure Connection" when starting Tor Browser for the first time.