WindowServer Mac [How To Fix High Usage] – [March 2023]…windowserver-mac/

If you’re new to WindowServer Mac, then you may be wondering what it is and how it works. Some users think that this process is somehow related to the Windows operating system.

 Well, that’s not true. WindowServer Mac isn’t related to the Windows operating system. It is actually a separate process that is native to Mac OS only.

 If you want to know more about WindowServer Mac then you’ve come to the right place. In this post, we’ll introduce you to WindowServer Mac and explain the basics of how it works.

 We’ll also cover some of the most important features that make WindowServer Mac a great choice for your business.

What Is WindowServer Mac?

So, what exactly is WindowServer on Mac? In short, it is a process that helps with communication between displays and applications on your Mac device.

 WindowServer Mac is responsible for managing the graphical display of windows and desktop elements. This process handles all the drawing and updating on your device’s screen.

 In other words, it is always working in the background to ensure that what you see on your screen is accurate and everything is running smoothly.

Features of WindowServer Mac

There are many features of WindowServer Mac that make it a great choice for businesses.

 Here are some of the most notable ones:

Efficient Communication:

WindowServer Mac is designed to provide efficient communication between displays and applications.

 This process makes sure that information is accurately transferred between different elements on your screen.

Support for Multiple Monitors:

One of the most important features of WindowServer is its support for multiple monitors.

 If you have more than one monitor connected to your Mac, WindowServer will manage the display on all of them. This includes menu bar items, the Dock, Mission Control, and more. 

Support for Retina Displays:

Another great feature of WindowServer is its support for Retina displays.

 If you have a Retina-enabled display connected to your Mac, WindowServer will automatically scale all of your content to look crisp and sharp. 

Benefits of Using WindowServer Mac:

Using WindowServer on Mac comes with a lot of benefits. For example, by using this process you can get enhanced performance and better organization.

 Let’s take a look at some of the benefits of using this process:

There are many benefits of using WindowServer Mac for businesses.

Better Organization:

WindowServer Mac can also help with organization by supporting multiple monitors.

 If you have more than one monitor connected to your Mac, WindowServer will automatically manage the display on all of them. This includes Mission Control, the Dock, menu bar items, and more.

Improved Performance:

WindowServer Mac is also known for its ability to improve the performance of your Mac device. 

 By handling all the graphical processing in the background, it frees up resources for other processes to run more efficiently.

Reduced Power Consumption:

Another great benefit of the WindowServer Mac is that it can help reduce power consumption on your device.

 By managing the display correctly, this process can help save battery life on your Mac.

Increased Security:

By handling all the communication between different elements on your screen, this process can help prevent malicious software from accessing sensitive information. 

 Thus, ultimately providing increased security.

Better User Experience:

Ensuring that information is accurately transferred between different elements on your screen, this process can help make sure that everything runs smoothly.

 In this way, you will get a better user experience.

Supported Devices:

If you’re using macOS Sierra or later, you can take advantage of WindowServer’s support for a wide range of devices.

 This includes everything from standard monitors and displays to more specialized devices like video walls and multi-touch tables.

 With WindowServer, you can create a custom interface for any supported device, giving you the flexibility to create a tailored experience for your users.

 In addition, WindowServer is constantly being updated with new features and support for the latest devices, so you can be sure that your interface will always be up-to-date.

Why Does WindowServer Operate on Mac?

The WindowServer process on Mac is responsible for managing the graphical interface and overall visual appearance of the Mac. This process is essential for the smooth operation of your device, as well as being able to view dynamic content on your screen.

 Although it may seem unnecessary, the WindowServer is actually a vital part of the Mac operating system. 

 So why does WindowServer operate on Mac? The simple answer is that it needs to be in order to provide the graphical interface that we are used to seeing on our screens.

 Without this process, our devices would be much less user-friendly and would not be able to take advantage of all the features that we have come to expect from them.

 In short, the WindowServer is an essential part of the Mac operating system and without it, our Macs would not be able to function properly.

Different Issues With WindowServer Mac:

It’s now a secret that WindowServer Mac comes with a lot of benefits. But this doesn’t mean that it works without any issues at all.

 Here are a few common problems that you will encounter while using WindowServer on Mac.

High CPU and RAM Consumption:

The first and most common issue that you will face is high CPU and RAM consumption.

 This is due to the fact that the WindowServer process is constantly running in the background, using up resources that could be used by other processes. Also, you are very likely to face this issue if you’re using a 4K Monitor.

 A lot of users have reported this issue after using a scaled resolution on their Retina display as well.

 Due to the high RAM and CPU consumption, your Mac will slow down and may even become unresponsive. But fortunately, there are a few solutions to get rid of this problem. We’ll explore them later in this post.

Incorrect Display of Elements:

Another common issue with WindowServer Mac is that it may display elements on your screen incorrectly. This includes everything from the Dock to Mission Control.

 In some cases, you may even see a black screen when you try to wake your Mac from sleep.

 These issues can be caused by a number of factors, including corrupt files or incompatible software. This is a common issue and can be fixed with a simple restart.

Why WindowServer Mac is Using So Much CPU?

The WindowServer process is responsible for drawing and handling window displays on your Mac.

 When you open an app or a new window or perform any other activity that requires your screen to update, WindowServer is what handles that request.

 In most cases, you won’t even notice WindowServer working in the background. However, there are times when WindowServer can start using up an abnormal amount of CPU power, which can lead to your Mac feeling sluggish. 

 There are a few different reasons why this might happen.

There is a Bug in your App:

One possibility is that you’re currently running an app that has a bug that causes it to constantly refresh the screen. This can put a strain on WindowServer, leading to high CPU usage.

Using Resource-Intensive Apps:

If you’re running a resource-intensive app, such as a video editor or video game, that requires lots of screen redrawing, that could be the culprit.

Visual Effects:

Enabling visual effects like Motions and Transparency in Mac computers results in multiple displays, which in turn increases the WindowServer Mac CPU usage.

Multiple High-Resolution Displays:

Another possibility is that you’re using multiple high-resolution displays, or have a lot of stuff on your desktop. This can also lead to increased CPU usage by WindowServer. 

How to Monitor WindowServer Mac CPU Usage?

CPU usage is the amount of time for which a central processing unit (CPU) was used for processing instructions of a computer program or operating system. It is also expressed as a percentage of the CPU’s capacity.

 It is an excellent way to measure the efficiency of the processor and it is also a good indicator of the overall health of your Mac. 

If you want to monitor WindowServer Mac CPU usage, then follow the step-by-step guide mentioned below:

  • Open the Spotlight Search (by pressing Command + Spacebar), type “Activity monitor,” and press enter.
  • Then, open the active processes by clicking on the “CPU” tab.
  • Search for “WindowServer” in the list of processes, and look for its “CPU percentage.”

 If you find that WindowServer is taking up an unnecessarily high amount of CPU usage, you may want to consider closing some files or folders on your desktop or disabling visual effects like Motion and Transparency.

How to Reduce High CPU Usage of WindowServer Mac?

There are a few different ways to go about reducing high CPU usage by WindowServer Mac. We’ll explore some of the most effective solutions below.

Quit All Unnecessary Applications

One of the best things you can do is to close any unnecessary applications running in the background. If you have different programs running at the same time then WindowServer will have to redraw all of them with each interaction.

 And this is an important reason why WindowServer uses a lot of CPU Power. So when you’re not using a particular app, close it down and see if that makes a difference.

Remove Unessential Files

One potential cause of high CPU usage is having too many files on your desktop. This is because the WindowServer has to render all of these files, which uses up resources.

 To fix this, simply move the files to a new folder or delete them completely.

Close Unnecessary Windows

Another thing you can try is closing unnecessary windows. If you have multiple desktop windows open, that can put a strain on your CPU usage as well. To close the extra desktop windows, follow the below-mentioned guide:

  • Go to the dock, and launch the Launchpad.
  • Now click on Mission Control and then hover your mouse pointer over unnecessary windows.
  • Click on the X in the upper corner and close them.

 Hopefully, this will help reduce your WindowServer CPU Usage.

Uninstall Faulty Apps

If you’re experiencing performance problems on your Mac, one possible cause is a faulty or corrupt application. Fortunately, you can often fix this problem by uninstalling the offending app.

 To do this, simply go to the “Applications” folder in Finder and locate the app. Then, command-click it and choose the “Move to Trash” option from the list. In most cases, this will resolve the issue and improve your Mac’s performance.

Reduce Visual Effects

In order to reduce the high CPU usage of WindowServer on a Mac device, it is necessary to reduce the number of visual effects that are enabled.

 Visual effects like transparency and motion can consume a lot of CPU power, so by disabling them you can help reduce your overall usage. To do this, follow the steps below:

  • First of all, on the top left of your screen, click on the Apple Logo.
  • From there click on System Preferences and then click on the Accessibility option
  • Proceed by clicking on Display.
  • Now check the boxes for Reduce Motion and Reduce Transparency.

This will drastically improve your CPU usage and it will also help your Mac run smoothly.

Update the Software

Another thing that you can do to get rid of this error is to update your system’s software. Most of the time, the different bugs that are irritating you can occur due to an older version of Mac.

 If that’s the case then you can also experience high CPU usage by WindowServer Mac as well. To avoid all the possible issues, altogether, make sure that your Mac is up to date.

If you don’t know how to check if your software is updated, then don’t worry. We’ve got your back. Follow the steps below to check if your Mac is running on the latest software or not.

  • Click on the Apple Logo. You can easily spot it on the top left corner of your screen.
  • From there, click on System Preferences.
  • Now, go to the Software Update option and click on Update Now if a new update is available.

Check if the issue persists after updating the software or not.

Reset NVRAM / SMC:

If your Mac is still frozen or failing to respond, you could try resetting your NVRAM or SMC. 

These resets are known to resolve minor issues and help in the smooth functioning of your device, so it is worth a try. 

Resetting NVRAM:

You can reset NVRAM by shutting down your device and holding down the Command + Option + P + R keys for about 10-20 seconds. 

Release all the keys when you hear the startup sound. 

Resetting SMC:

To reset SMC, please ensure that your Mac is completely shut down. Press and hold the Shift + Control + Option + Power buttons and release the keys. Turn on your Mac again.

Restart Your Mac:

One way to help reduce the high CPU usage of WindowServer Mac is to restart your device on a regular basis. This will delete any temporary files and cache that may be built up, and free up RAMs.

Additionally, it can also fix problems whereby certain processes are consuming too many CPU cycles. Thus, by restarting your Mac every now and then, you can help keep its CPU usage low.

Disable Multiple Displays

Another major cause behind the heavy CPU consumption by WindowServer Mac is having more than one display connected to your system.

Having more than one monitor connected to your device can put a strain on the WindowServer, as it must manage the additional visuals without the benefit of a separate graphics processor unit (GPU). 

By disconnecting any unnecessary monitors, you can help to reduce CPU usage.

Is WindowServer Mac a Threat?

There is a lot of misinformation out there about the WindowServer on Mac, with some people claiming that it is a threat. However, this is not the case. 

WindowServer on Mac is a vital part of the operating system that every application needs in order to display its content on the screen. without it, your Mac would simply be a blank screen. 

While it is true that some threats (such as viruses) can masquerade as legitimate files, such as WindowServer, rest assured that the real thing is not going to harm your Mac in any way. 

If you are ever unsure about a file on your computer, you can always use a trusted antivirus tool to scan it and check for any malicious activity.

Should I Quit WindowServer on my Mac?

There is no need to quit the WindowServer on Mac process, as it is critical for the overall operation of your computer. If you do choose to quit this process, you will be prompted to log out and all of your applications will be terminated. 

However, if you’re concerned that the WindowServer on Mac is causing your device to slow down, you can simply check the CPU usage and take action as outlined above. 

In general, there is no need to worry about the WindowServer on Mac process and its impact on your computer’s performance.


In conclusion, WindowServer is a process that works in the background of a Mac and is responsible for managing your computer’s display. It facilitates communication between different app windows and the Dock.

It also provides various other functions for the UI of macOS. While it’s an important process, some users have found that it can use up a lot of CPU on their Macs, particularly when they open lots of apps at once or graphic-heavy applications.

If you’re worried about high CPU usage from WindowServer, there are several things you can do to monitor and reduce its impact. 

Ultimately, whether or not you should quit WindowServer comes down to personal preference; if you don’t think it’s causing any problems on your system, there’s no need to force it to close.

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