Many complain that the WindowServer trial sometimes consumes a lot of resources from the processor CPU and RAM, which automatically leads to MacOS degradation on Mac, iMac or MacBook. The resource utilization rate of the WindowServer process is available in real time to any user accessing the Activity Monitor.

Apparently, the WindowServer process sometimes starts consuming a lot of RAM and CPU resources, which automatically leads to a decrease in system performance, applications start to jam, difficulties with search windows open, the screen saver starts to twitch, and access to system settings is delayed. How to avoid overloading the process called WindowServer I will tell you in this article.

What is a WindowsServer?

The WindowServer process belongs to the macOS operating system (system process) and deals with all the visual side of the desktop, the Dock bar, Menu bar, etc. This process makes the control between the UI (user interface) what the user sees and the hardware part. All folders and files that are on the Desktop, the consequences of transparency from the Dock The menu bar is the full managed with WindowServer process.

Read more: Why does mds Process Uses CPU & RAM on your Mac?

This process starts immediately after the operating system starts, and without it you cannot access a Mac. Therefore, you should not close it from the Activity Monitor. Even if you are allowed to do this, you will see that as soon as the WindowServer process is closed, you will be taken directly to the “Login Screen”.

How Can We Make WindowServer No Longer Consume a Lot of RAM and CPU

The WindowServer process usually has short periods of time, requiring a large amount of resources, after which everything returns to its normal state.

However, if you do not want these periods to be longer, consider the following:

  • Try to minimize the number of folders and files on your desktop. For example, if you have 50 files in the Desktop and 5 folders, try adding them all to one folder. Thus, the WindowServer process will transfer one visual element instead of 55;
How to Reduce WindowServer CPU and RAM Usage in macOS?
  • Close Finder windows that you do not use. It could be more effectively yo use one open window with multiple tabs;
  • Disable macOS transparency effects. Turning off these visual effects will greatly enhance the performance of any Mac.  Do this from: System Preferences -> Accessibility-> Display -> Reduces Transparency & Reduce Motion;
How to Reduce WindowServer CPU and RAM Usage in macOS?
  • Disable automatic permutation in Mission Control. Go to the System Preferences -> Mission Control and uncheck the box “Automatic rearrange Spaces based on most recent use”;
How to Reduce WindowServer CPU and RAM Usage in macOS?
  • Close applications that you do not use. It was found that the consumption of WindowServer also affect the graphic effects in applications;
  • After making all or part of these changes, restart the operating system.


Of course, the WindowServer service will no longer consume RAM and CPU as much as before.

It’s the best time to ask questions and give us your feedback in comments.


Hi there! My Name is Vincent Lago! My goal is to share insightful reviews, guides, and manuals for people looking to know more about current solutions for Apple hardware and OS. I have years of technological background knowledge including owning a custom iMacs & PCs which was using for different types of business. And now, I want to share my experience with you.

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