High CPU usage due to CEPHtmlEngine

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High CPU usage

Some users may experience high CPU usage after launching Adobe products. If you think you are affected by this issue, check the following.

  • macOS: Launch Activity Monitor, go to the CPU tab, and check whether CEPHtmlEngine Helper process is causing high CPU usage.
  • Windows: Launch Task Manager, go to the Processes tab, and  check whether CEPHtmlEngine Helper process is causing high CPU usage.

If you find that CEPHtmlEngine Helper process is causing high CPU usage, try the following solutions:

Note:

If you experience this issue with Dreamweaver CC 2015, install the latest update to resolve the issue.

Solution 1: Check the log files folder

This issue can occur when Adobe products are unable to access or write to a log files folder. Check the folder listed below to ensure that it exists and your current user account has write permissions to change its content.

  1. Windows:

    • Access %USERPROFILE%\AppData\Local\Adobe\Creative Cloud Libraries\Logs from the search field in the Start Menu or from the Run command
    • Confirm that the folder exists and you have write permissions for it.  

  2. Mac OS:

    • Access ~/Library/Logs/Creative Cloud/Creative Cloud Libraries using the Go to Folder command.
    • Confirm that the folder exists and you have write permissions for it.

Solution 2: Change the following folder content

  1. Close any open Adobe products such as Photoshop, Illustrator, Dreamweaver, or InDesign.

  2. Move the content from the folder listed below to somewhere else as a backup (in a folder on your Desktop for example). See the path below for the folder location by product.

    Note:

    You need to select the product executable directly and Ctrl+click it to use the Show Package Contents command to access the product directories listed below.

    Mac:

    • Photoshop: /Applications/Adobe Photoshop CC 2015/Adobe Photoshop CC 2015.app/Contents/Required/CEP/extensions/com.adobe.DesignLibraryPanel.html/
    • Illustrator: /Applications/Adobe Illustrator CC 2015/Adobe Illustrator CC 2015.app/Contents/Required/CEP/extensions/com.adobe.DesignLibraries.angular/
    • InDesign: /Applications/Adobe InDesign CC 2015/Resources/CEP/extensions/com.adobe.DesignLibraries.angular/
    • Dreamweaver: /Applications/Adobe Dreamweaver/CC 2015/configuration/CEP/extensions/

     

    Windows:

    • Photoshop: C:\Program Files\Adobe\Adobe Photoshop CC 2015\Required\CEP\extensions\com.adobe.DesignLibraryPanel.html
    • Illustrator: C:\Program Files\Adobe\Adobe Illustrator CC 2015\CEP\extensions\com.adobe.DesignLibraries.angular
    • InDesign: C:\Program Files\Adobe\Adobe InDesign CC 2015\Resources\CEP\extensions\com.adobe.DesignLibraries.angular
    • Dreamweaver: C:\Program Files\Adobe\Adobe Dreamweaver CC 2015\configuration\CEPExtensions\com.adobe.DesignLibraries.angular
    • Premiere Pro: C:\Program Files\Adobe\Adobe Premiere Pro CC 2015\CEP\extensions\com.adobe.DesignLibraries.angular
       
    Note:

    Holding down the Option key while dragging allows you to create a copy of the folder's content.

  3. Delete the content of the original folder after creating a copy.

  4. Download DL224.zip and extract its content into the folder listed below (same content you backed up and deleted in the previous step).

    Note:

    You need to select the product executable directly and Ctrl+click it to use the Show Package Contents command to access the product directories listed below.

    For Mac:

    • Photoshop: /Applications/Adobe Photoshop CC 2015/Adobe Photoshop CC 2015.app/Contents/Required/CEP/extensions/com.adobe.DesignLibraryPanel.html/
    • Illustrator: /Applications/Adobe Illustrator CC 2015/CEP/extensions/com.adobe.DesignLibraries.angular/
    • InDesign: /Applications/Adobe InDesign CC 2015/Resources/CEP/extensions/com.adobe.DesignLibraries.angular/
    • Dreamweaver: /Applications/Adobe Dreamweaver/CC 2015/configuration/CEP/extensions/

     

    For Windows:

    • Photoshop: C:\Program Files\Adobe\Adobe Photoshop CC 2015\Required\CEP\extensions\com.adobe.DesignLibraryPanel.html
    • Illustrator: C:\Program Files\Adobe\Adobe Illustrator CC 2015\CEP\extensions\com.adobe.DesignLibraries.angular
    • InDesign: C:\Program Files\Adobe\Adobe InDesign CC 2015\Resources\CEP\extensions\com.adobe.DesignLibraries.angular
    • Dreamweaver: C:\Program Files\Adobe\Adobe Dreamweaver CC 2015\configuration\CEPExtensions\com.adobe.DesignLibraries.angular
    • Premiere Pro: C:\Program Files\Adobe\Adobe Premiere Pro CC 2015\CEP\extensions\com.adobe.DesignLibraries.angular
       
Note:

Adobe engineering is aware of the issue and plans to address it in a future update.

Get file
DL224.zip
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