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Custom Level and Default Level buttons in Internet Options Security tab are grayed out

Published: Oct 16, 2004
Updated : July 25, 2005
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Symptom

When you open Internet Options Security tab, you may be unable to alter the security setting for any Zone, because the Custom Level and Default Level buttons may be greyed out. This is due to restrictions set in the registry.

Resolution

  • Click Start, Run and type REGEDIT.
  • Navigate to the following locations:

HKEY_CURRENT_USER \ Software \ Policies \ Microsoft \ Internet Explorer \ Control Panel

and

HKEY_LOCAL_MACHINE \ Software\ Policies \ Microsoft \ Internet Explorer \ Control Panel

  • Backup the keys by exporting it to REG file. See Method 2 here.
  • In the right-pane, select the SecChangeSettings value and delete it.
  • Then, navigate to the following location:

HKEY_LOCAL_MACHINE \ SOFTWARE \ Policies \ Microsoft \ Windows \ CurrentVersion \ Internet Settings

  • In the right-pane, select the Security_options_edit value and delete it.
  • Close Registry Editor.

Related article

"Sites" button and "Custom Level" slider are grayed out in Internet Options - Security tab?