Uninstall fails removal from gmail/outlook as a 40 year well-seasoned software/hardware electronics test engineer - air force one & department of defense experience - your installation fails removal...
A short checklist before trying to see what's behind this issue you encounter:
-a full and complete uninstall of the old AV solution that you had
-try uninstall + reinstall Bitdefender
-see what processes...
...I did notice the problems started after the recent update of bitdefender.So for testing purposes i uninstalled bitdefender. And that solved all problems....