I am having an issue with the bitdefender antivirus process eating up all of my system RAM.
As you can see below it is using excessive amounts (16GB here but I have seen as high as 27GB)
It slowly grows over time (approximately 1GB per 30mins) and will eventually stop the computer from responding at all.
I followed the instructions in this thread to completely reinstall bitdefender and the issue is exactly the same.
https://community.bitdefender.com/en/discussion/82368/my-bdservicehost-uses-too-much-of-my-cpu-and-memory-all-the-time-how-can-i-fix-it