Windows Client/Server Runtime Subsystem process (csrss.exe) is crucial for the system’s smooth operation. In the most current iterations of the Windows Operating System, the Win32 console and GUI shutdown are handled by the csrss.exe process. The csrss.exe process has been known to suddenly start using almost all of the CPU and RAM in the case of some Windows users, causing the system to either fail and crash completely or become so sluggish that it becomes unusable.

How to Fix High CPU and Memory Usage By csrss.exe

A corrupt user profile, malware, or a virus with the same name (csrss.exe) as the genuine Windows system process can all be the root of this problem. Regardless of which of these two is the root of the issue in your situation, you can rest assured that there is something you can do to try and resolve it. However, you must first identify the problem’s precise cause before taking any action to attempt and remedy it. You can quickly determine how many csrss.exe processes are active on your computer by pressing Ctrl + Alt + Delete, opening Task Manager, and going to the Processes tab. You can be confident that a virus or other malicious software is to blame for your issue if your computer has two (or more) csrss.exe processes running and one has nothing suspicious or nothing in the User name or Description sections.

Scan for Virus Infections

  1. Download the Farbar Recovery Scan Tool from the official website.
  2. Launch it and scan.
  3. Wait while the tool checks your computer for malware, viruses, and other security concerns. To determine whether a csrss.exe process on your computer that consumes nearly all of its CPU and memory is caused by a virus, malware, Trojan, or other security breaches, review the utility’s results and the log file it created on your Desktop (or wherever the utility’s executable file that you downloaded was when you ran it).
  4. If you determine that this issue is caused by a virus, malware, or another security hazard, make sure it is removed from your computer.

If Corrupt files Are to Blame

Pro Tip: We recommend using Restoro to fix malware-damaged files, registry errors, drivers, and more. The professional tool helps you scan and repair such issues with ease.

If a virus, spyware, or other dangerous file wasn’t the problem, or if the above-mentioned solution didn’t work, a corrupted user profile probably was to blame. If that’s the case, simply making a new user profile and deleting your old one should resolve the problem and restore the csrss.exe process on your computer to its previous state utilizing just a small bit of CPU and RAM. Make a backup of all the information on your desktop and in your Documents folder before deleting your user profile. Before using this fix, make sure to back up any important files.

  1. Go to User accounts in the Control Panel.
  2. Select Manage a different account. To start a new account, click on it. Click Create an account after giving the new account a name and choosing Administrator. Click twice on your main account. Press the account deletion button. To finish the procedure, click on Delete account after selecting Delete files.
  3. Once you log into your new account, the corrupt user profile will be swapped out for a brand-new, whole one.
  4. If you don’t want to delete the old account because it contains important files, back up non-executables (such as My Documents, My Pictures, and Word Files) to an external disc drive first. Copy those files to the new profile after creating or deleting the old one.

Tip: If you’re having trouble with Windows updates, malware damage, registry errors, drivers, and activation, we recommend using Restoro. This software will scan and fix your problem automatically.

Tell us what you think