I have Windows 7 x64 I have tried:
- uninstalling and reinstalling
- running from cmd window
- stopping antivirus
Restoring to previous version (wouldn't run though - XUL Runner "Error: platform version '52.2.0' is not compatible with minVersion >=51.1.2 maxVersion <= 51.1.2")
-Restarting PC
-Looking for tor.exe in Task Manager Processes to end process (not there)
Has anyone any other ideas? Many thank for your help!