Hello @mef
Thank you for reaching out on the community and telling us about your issue. I do apologize for the issue you're having. I'm wondering if the program may still be open in the background while not showing. If you could open up your start menu and type in task manager. Make sure more details is selected and select the details tab. From there see if QW.exe is open and if it is click on it and end the task.
There's a chance this could be the issue but if you're still having issues let us know and we'll see what we can try next.
Thanks,
Quicken Francisco