I'm obviously missing something!
Downloaded Windows version and it found OneDrive which I don't use and have never signed up for. Anyway, I created a folder in OneDrive and placed a file to be encrypted in it. Logged out, refreshed, but could still access the folder and file. No green icon against the file or folder!
Downloaded the Chrome version because I use Drive. Same thing - can access any file even without logging into Boxcryptor. i can't find a way to encrypt only one file or folder in Drive anyway!
So please someone, please give me step-by-step guidance. What am I doing wrong?