How to Repair High CPU and Memory Usage by Csrss.exe on Windows 10

Last Updated on January 17, 2022



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Applications cause your computer to freeze, just to notice that there is a process called Client Server Runtime Process that almost eats up your CPU.

Even worse, sometimes you will see two or more csrss.exe processes running in task manager. Faced with this annoying problem, many users prefer to disable csrss.exe in Windows 10. But what you don’t know is that this process is important for your PC.

Let’s take a look at what csrss.exe does and what you can do if it uses too much CPU on Windows computers.

Why is csrss.exe using so much CPU and memory?

This problem can have two causes: a corrupt user profile or a virus or malware with the same name (csrss.exe) as a legitimate Windows system process.

How to eliminate the high CPU and memory load that csrss.exe uses?



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Utilize ‘reset this PC’ function

  1. Press the Windows + I key to open the Settings application.
  2. Open the Update and Security section.
  3. Select Restore.
  4. Under Reset this PC, click First Steps.
  5. Select the Delete all files option, and then the restore process will begin.

Scan for viruses

  1. Open Windows Defender from the system tray.
  2. Click on Virus and Threat Protection.
  3. Click Advanced Scan.
  4. Select Windows Defender standalone scan.
  5. Click the Scan now button.



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Frequently Asked Questions

  1. Launch the Task Manager.
  2. On the Processes tab, find the process CSRSS.exe or Client Server Runtime Subsystem.
  3. Right-click the file and select Uninstall.
  4. If Windows displays a warning, it is a legitimate CSRSS.exe process.

All of your computer's memory is related to the processor and RAM. However, the problem of high memory consumption is mainly due to overloading many internal processes. Therefore, it is useful to stop unnecessary programs and running applications. Open the Task Manager and check all additional programs that you are not using at the moment.

No. csrss.exe is a critical system process that cannot be removed via Task Manager without causing problems for Windows. If you try to terminate the csrss.exe process, the "Unable to terminate process" window will appear with the error message "This is a critical system process.

  1. Reboot your system.
  2. Stop or restart the processes.
  3. Update drivers.
  4. Scan for malware.
  5. Power options.
  6. Find specific instructions online.
  7. Reinstall Windows.