Announcement: Upgrade to macOS Mojave

With features like Dark Mode, Stacks, and four new built-in apps, macOS Mojave helps you get more out of every click. 
Find out how to upgrade to macOS Mojave > https://support.apple.com/macos/mojave

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Question:

Question: fontworker and fontd processes using 90% CPU

There are two processes (fontworker and fontd) that are using 90% or more of my CPU processing power. My iMac system (27-inch, Late 2012) is running VERY slow. Why is this? How can I stop these processing from using all my CPU? I am running Mac OS High Sierra (ver 10.13.3) on a 2.9GHz Intel Core i5 with 8GB of memory.


Any insight/assistance would be greatly appreciated. Thanks.


Kind regards,


Bob

macOS High Sierra (10.13.3)

Posted on

Reply
Question marked as Solved
Answer:
Answer:
Hello and welcome to Apple Support Communities hitz1,

I see that your iMac is running slowly and you're seeing two processes using a lot of processing power. I can understand your concern, and I'd be happy to provide some information to try to help.

Let's have you take a look at this article that will walk you through how to quit any processes that are not working properly:

See how apps affect Mac performance, battery runtime, temperature, and fan activity
Take a look at the section titled "Quit any malfunctioning processes".
Thank you for using Apple Support Communities.
Have a great day!

Posted on

Question marked as Solved

Feb 27, 2018 2:54 PM in response to hitz1 In response to hitz1

Hello and welcome to Apple Support Communities hitz1,

I see that your iMac is running slowly and you're seeing two processes using a lot of processing power. I can understand your concern, and I'd be happy to provide some information to try to help.

Let's have you take a look at this article that will walk you through how to quit any processes that are not working properly:

See how apps affect Mac performance, battery runtime, temperature, and fan activity
Take a look at the section titled "Quit any malfunctioning processes".
Thank you for using Apple Support Communities.
Have a great day!

Feb 27, 2018 2:54 PM

Reply Helpful (1)
User profile for user: hitz1

Question: fontworker and fontd processes using 90% CPU