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Missing Export HCCUTILS.DLL:IsDisplayValid Error for Intel® Graphics Drivers

Last Reviewed: 22-Dec-2016
Article ID: 000006515

What is the issue?

  • Error: "The IGFXTRAY.EXE file is linked to missing export HCCUTILS.DLL:IsDisplayValid."
  • Error: "The HKCMD.EXE file is link to missing export HCCUTILS.DLL:IsDisplayValid."

What is the cause?

The errors may appear when you start Windows* after reverting to a previous version of the Intel® Graphics Drivers. For example, when you go from a 6.x graphics driver to a 5.x graphics driver.

How do I fix it?
  1. Select and copy the text between the rows of asterisks below:

    DelReg = Intel.DelReg


  2. Paste the text into Notepad and save it to C:\ as "fixreg.inf". Be sure to select Save as type: All Files in the Save dialog box.

  3. Navigate to C:\ in Windows* Explorer.

  4. Right-click the fixreg.inf file and choose Install. No confirmation is given.

  5. Reboot your system.

This article applies to: