Applies to: Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Datacenter Windows Server 2008 R2 for Itanium-Based Systems Windows Server 2008 R2 Foundation Windows Server 2008 R2 Standard Windows Web Server 2008 R2 More. However, a challenging task provided that WindowServer is important to draw everything view in Mac OS X. Hopefully the WindowServer CPU usage problem is just an optimization or bug problem that will be addressed. I know this sounds awful, but various commenters have claimed temporary success with this.Head over to the Apple menu and select “System Preferences”, then move to “Accessibility”Toggle the setting for “Displays have separate spaces” to be OFFIf you have a multi-display setup, another setting is to turn off Spaces for each individual display.The fix is more user behavior-oriented than anything else; get in the habit of closing unwanted windows or apps so they are no longer needs resources.Turn off the setting for “Automatically rearrange Spaces based on most recent use”Then log out, or better yet, then reboot the MacIf WindowServer is staying at stabbing high CPU usage for apparently no meaningful cause in some cases with Mac OS X or macOS this guide is good at you. However, the hardware is old or new. Windows Server Mac : High CPU process – Solved. it dropped again.Chrome may be part of your problem, too. You can then continue to search WindowServer misbehaving or the Mac executing excessive slow.When OS X Yosemite has several windows of Finder or apps open, WindowServer begins to consume an excessive amount of resources. But this behavior continues well into the newest model of Mac OS even on the latest Mac hardware. I am by no means doing some exhaustive investigation. Kevin Kevin. It may make development easier, but that ease is illusory if it results in apps that don’t work well on non Blink/V8 based browsers. I had a similar issue with high cpu usage in WindowServer which I managed to get back to something more normal by removing any items in my menu bar that were making high frequency drawing updates. Every since upgrading to the last couple of Mojave supplemental updates my MAC has been suffering High CPU utilisation on the WindowServer process at the same times each day. My laptop (3.1GHz i7 MacBook Pro with 16GB of RAM) has enough of power, so why has it been such a dog since starting from scratch with a fresh OS? I use the latter! Also, barely older hardware like a MacBook Air from 2012 is irritating slow with transparent effects on. Obviously it doesn’t stop at just trimming out running applications, but I’m blown away by the impact of small changes like these.If you are a webdev you’d probably do well to avoid relying too much on Chrome, anyway.