It's the issue hasn't been resolved after uninstalling / reinstalling, then it's most likely Security Software related, and should be resolved after you uninstall the software, followed by restarting your computer.

If you'd like to make sure before proceeding with that action, please feel free to submit a Support Ticket and include the text file that is created while running our EME Diagnostic : ( http://support.enmasse.com/tera/resolve-technical-issues-with-the-diagnostic-tool )