High GPU usage during client-server execution [Fixed]

Some users complain that the process is triggered A client-server runtime environment shows high GPU usage. The process consumes 40-50% of the GPU, making it very difficult to run graphics-intensive programs such as video editing programs and even some games. Sometimes a process called Desktop Windows Manager (dwm.exe) runs together with Client Server Runtime and consumes a lot of GPU. In this post, we’ll talk about this problem and see what you can do to fix it high GPU usage caused by Client Server Runtime or csrss.exe.

High GPU usage during client-server execution

What is client-server runtime?

A client-server runtime environment or Csrss.exe is a true Windows process and has been an integral part of the OS since Windows NT 3.x. It takes care of the graphics of the operating systems and manages and does other important things related to graphics. However, in the latest iteration of Windows, it does not have much of a role, since after the release of Windows NT 4.0, most of its work is done by the Windows kernel.

But the process is still present in all versions of Windows and can be found in the following location.


There is no way for a client-server runtime to consume a lot of GPU, it doesn’t need to. In case you notice that the server is taking up GPU resources, check out the solutions below.

Fix high GPU usage during client-server execution

If the client-server runtime (Csrss.exe) is causing heavy GPU usage on your Windows 11/10 computer, follow the solutions below to resolve the issue.

  1. Disable hardware-accelerated GPU scheduling
  2. Make sure that the process running on your computer is not a virus
  3. Roll back your driver
  4. Update the graphics driver
  5. Do not accelerate

Let’s talk about them in more detail.

1]Disable hardware-accelerated GPU scheduling

Windows scheduling with GPU hardware acceleration

The very first thing we need to do is disable hardware-accelerated GPU scheduling. The service is usually enabled in the settings, and to take the load off the CPU, it allocates some high-priority tasks to the GPU. If you are experiencing a high GPU error, you should disable this feature by following these steps.

  1. Open Settings by Win + I.
  2. Go to System > Display > Graphics.
  3. Click on Change the default graphics settings.
  4. Finally, turn off the switch for GPU scheduling with hardware acceleration and then restart your computer.

Hope this helps you.

2]Make sure the process running on your computer is not a virus

As mentioned earlier, the client-server runtime error is a genuine Windows process. Having said that, there are many viruses that can masquerade as a genuine process. To confirm that a process running on your system is not a virus, open Task Manager, right-click the process, and select Properties. In case the process is not currently running, go to the Details tab, find A client-server runtime environment and select Properties.

Now you need to check the following two things.

  • Accommodation: C:\Windows\System32
  • Digital signature: Microsoft Windows

If you conclude that the process is a virus, you can use Microsoft Defender offline scanning or a third-party antivirus. If you want to run the Windows Defender Offline scan, follow the steps.

  1. Search Windows Security from the Start menu.
  2. Go to Virus & threat protection > Scan options.
  3. Choose Microsoft Defender Antivirus (Offline Scan) and click Scan Now.

No matter what antivirus you use, an antivirus cleanup will do the work for you.

3]Rollback your driver

A buggy update can cause you serious problems, and recently it has when it comes to graphics drivers. If you’re still seeing high GPU usage, there’s no harm in rolling back the driver. Follow the prescribed steps to do the same.

  1. Open Device Manager.
  2. Expand Display adapters.
  3. Right-click on the highlighted GPU (NVIDIA or AMD) and select Properties.
  4. Go to the Driver tab and click on Driver rollback button.

If the Rollback Driver button is not available, you will not be able to rollback the driver, instead go to the next solution and update it.

4]Update your graphics driver

If you can’t rollback or if the rollback didn’t work, we can update the driver to get rid of the error. There are various ways to update the driver, you can choose any of the below and proceed with it.

Hope this helps you.

5]Do not accelerate

In case you’re overclocking your GPU to get a little more performance out of it, be prepared to run into some issues. There are many games that are incompatible and won’t run if you overclock your CPU or GPU, and you’ll experience high GPU load with services that typically use a small portion of your resources. In short, if you’re overclocked, turn it off.

We hope you can solve the problem with the solutions mentioned in this post.

Read: Desktop Window Manager dwm.exe Large Memory, CPU, GPU

Why is the Client Server Runtime process using my GPU?

The client-server runtime is tied to your computer’s graphics, so it’s perfectly normal to use some part of the GPU. However, in modern OSes, the Client Server Runtime uses very little of the GPU, as most of its work is redirected to the Windows kernel. So, if the client-server runtime is showing high GPU load, check out the solutions mentioned in this post to resolve the issue.

Can I close the client server runtime?

No, you cannot close the client-server runtime. You can try to do the same, right-click the process in the task manager and select “End task”. You will be greeted with an error message stating that this will make your system unstable. If you choose to continue, the next error message will say “Access Denied”.

Read also: Fix high CPU usage of .NET Runtime Optimization Service on Windows.