Failed to update System registry. Please use REGEDIT

Last Published: April 26, 2020

Error Message

Opening ArcMap or ArcScene produces the error:

"Failed to update System registry. Please use REGEDIT"


The user account into which you are logged lacks adequate permission to update some registry keys.

Solution or Workaround

Although this message has not been found to affect functionality, your system administrator can grant your user account FULL CONTROL to the following registry keys.
The instructions below include making changes to essential parts of your operating system. It is recommended that you backup your operating system and files, including the registry, before proceeding. Consult with a qualified computer systems professional, if necessary.

Esri cannot guarantee results from incorrect modifications while following these instructions; therefore, use caution and proceed at your own risk.
Please visit the link in the Related Information section prior to any registry modifications.
  1. Click Start > Run. Type regedt32
  2. Browse to the key/folder to be modified and highlight it.
  3. Open the Permissions dialog:
    • Windows NT and 2000 - Click Security > Permissions
    • Windows XP - Click Edit > Permissions
 The HKEY_CLASSES_ROOT\esriCore.MxDocument is created by ArcMap. You must run ArcMap as an administrator to create the key before changing its permissions.

HKEY_CLASSES_ROOT\esriCore.SxDocument is created by ArcCatalog. ArcCatalog must be run as an administrator to create the key before changing permissions.

Article ID:000003017

  • ArcMap 8 x

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