Illustrator 2020 run 100% CPU usage with no file opened.

I've found an easy solution to this problem.

To solve it (on Windows) just do the following:

1. Open the Task Manager
2. Find the process CoreSync.exe and right click > Open file location
3. Delete the file
4. Find the process CCXProcess.exe and right click > Open file location
5. Delete the file

That's it.

Same problem on 24.3!

Deleted AIRobin folder.

For me CoreSync process was causing 100% CPU usage. Closing it fixed the issue.

Hi,

I got solution for this issue. Follow Ashutosh_Mishra's guide first. Then if you have not logged in to your CC account please do it. If u have already signed in check whether you are signed out by any chance. 

Thank you.

Hi there,

Sorry to hear about your experience. Please make sure you have Adobe Illustrator & Windows updated to the latest version.

You may also try resetting preferences once. Please follow instructions below to do that:

• Close all Adobe applications. 
• Go to Location C:\Users\user\AppData\Roaming\Adobe 
• Rename Adobe Illustrator and Adobe Illustrator 24 Settings folders to Adobe Illustrator.old and Adobe Illustrator 24 Settings.old 
• Launch Illustrator from the Creative Cloud. 

**Please note that resetting preferences will remove all the custom settings and Illustrator will launch with default settings. This way all your old settings will be saved in .old folders and Illustrator will recreate new folders with default settings.

Let us know if it helps.

Regards,

Ashutosh