Bdservicehost consistently averaging 20% CPU

Takend · October 2022

Hi, I've noticed that whenever I startup my PC and check task manager, I see bdservicehost (the virus shield) using 18-22% CPU very consistently. When I launch a game or something and the CPU is high, the service drops to 10-13% CPU usage and goes back up to 20%. I've just noticed as I am writing this that it stopped and have noticed in the past couple days it stops after a while. I don't really want to reinstall so is this usual behaviour and if not does anyone know a fix?

Takend · October 2022

Hello, after some thinking, I've figured out it's probably due to Razer Synapse updating (my mouse/keyboard software). I no longer use razer products and after uninstalling it seems that the cpu usage is much better.

Scott · October 2022

Hi @Takend

Are you running Windows 11? As for myself, the same thing happened with their 22H2 update(s). BD Total Security was using 12-23% CPU, even after 3 restarts and waiting 5 minutes for it to settle down, which it didn't. My poor little notebook has been through some high CPU issues in the past, so I uninstalled BD for now until a BD update or Windows follow-up update. I'm not saying you should do that, as you could contact support and submit a log file as per their request, but since I have a license for another AV, I just installed that until things get resolved. :)

https://www.bitdefender.com/consumer/support/

Cheers :)

Takend · October 2022

Hi @Scott, I am running Windows 10 21H2 with Bitdefender Free. I just tried a restart and this time it only took a couple minutes for bdservicehost to calm down. Not really sure why this happens but if it starts again I might contact support.

Scott · October 2022

If it eventually settles down, I wouldn't worry too much about it. @Nunzio d'Abbruzzo used the free version for a while, so I'm not sure of his experience and what version of Windows he was using or its build number, but maybe he will have an observation or two?

Nunzio77 · October 2022

I've honestly never noticed such high CPU usage in a long time since that process. When starting up for 1 or 2 minutes I think it is also normal because it analyzes the various processes that start and if you have many starting I think it is normal. I had also noticed this behavior in Kaspersky Security Cloud Free and also every time Chrome is opened, programs are started etc ... With Bitdefender in normal use, I don't know abnormal CPU usage. Only the RAM goes from moments in which it is at 80/90% to 300 / 350Mb, a behavior that I have not yet understood and we are waiting for any optimizations by Bitdefender. How long have you installed it? Did you do a full scan?