You might notice processes and services like nvbackend.exe, Nvidia Streamer Service, nvcpl.exe, and others if you have an NVIDIA graphics card installed on your computer. These files are bundles that arrive when you install your video card driver and contain additional programs that are necessary to run the device at peak efficiency.
Here's a quick summary of each process and what it does:
Nvbackend.exe - this is the main service that runs in the background. It may use up to 90% of your CPU if you're doing resource-intensive tasks like gaming or using GPU-accelerated applications. Nvcpl.exe - provides an interface for system and video control panels, as well as software and hardware management tools that interact directly with Nvidia GPUs (it allows other processes to communicate with NVIDIA drivers). This executable manages settings such as TwinView, multiple displays, color correction, and others; windows services called nvvsvc.exe and nvscpusrsvc.exe - these track applications running on your computer and keep the drivers up-to-date. Nvstreamer service - this is required by Twitch, so if you use it for streaming, you will see it constantly running in the background.
Nvidia Streamer Service constantly monitors your computer's display settings and if they are changed (even by another user or an external application), notifies clients that are subscribed to receive such notifications.
The main thing to remember about these services is that even if you don't run resource-intensive tasks on your PC with an NVIDIA graphics card installed, they won't go away because Windows doesn't allow them to be removed without having a serious impact on the functionality of features running behind the scenes. You can disable specific Nvidia processes/services depending on whether their services are running or not, but it's a good idea to keep nvbackend.exe up if you want the GPU driver to function without problems.
Nvidia graphics cards can also affect your computer's performance in some cases because of these processes that use resources even when you're not running resource-intensive tasks. You can disable them with third-party tools or manually disable unnecessary components and services - just remember that doing so may cause problems with your video drivers and Windows won't allow you to remove them completely without having significant issues on your PC. All this is happening because NVIDIA doesn't provide an official way for users who don't play games at all/never use GPU acceleration to uninstall specific parts of their graphics card drivers.
Fixing Nvbackend.exe Related Issues
There has been a slew of reports about the NVIDIA GeForce Experience Backend. Some users reported excessive CPU usage, game crashes, and blue screen of death. In the techniques below, we'll look at possible solutions to this problem.
Your graphics card drivers may have some serious issues that cause the NVIDIA Backend process to run out of control. Firstly, you can check if a new driver update is available by using special software for this purpose. Secondly, you can do it manually - just go to the official site and find the most suitable version for your computer.
If an error occurs during the installation of GeForce Experience or any other driver from NVIDIA, users can simply uninstall what has already been installed and start over again. In case updates aren't available online anymore, there's another way how you can do this manually.
To complete a clean install of NVIDIA Graphics Drivers, follow these steps: Open Device Manager by pressing Win+R, typing devmgmt.msc into the box and press Enter. Expand the Display Adapters category by double-clicking on it. Right-click on your NVIDIA graphics card and select Uninstall from the context menu. In case you have multiple NVIDIA adapters installed (multiple graphics cards or Quadro/Tesla), select Delete driver software for this device as well from a separate window that will appear before actually uninstalling a driver. Select Action > Scan for hardware changes from Device Manager's menu to check if there are any unknown devices detected after the uninstallation process is complete. You can also use a special utility designed to remove NVIDIA drivers completely http://www.nvidiaforcewareuninstaller.com/.