SP 51605: Enable "Allow previously unused ActiveX controls to run without prompt" choices in Internet Explorer

Symptom: The Enable and Disable choices for the “Allow previously unused ActiveX controls to run without prompt” option are grayed out in the “Custom level” security settings for the “Local intranet” zone under the “Security” tab in “Tools -> Internet Options”.
Resolution: Modify the system registry settings to enable the choices for the “Allow previously unused ActiveX controls to run without prompt” option in the “Security Settings” dialog.
Category: Internet Explorer

1. "Internet Explorer has been removed from this computer" message is displayed when you login to your account
2. Cannot modify settings for ”Local Intranet”, “Trusted Sites” and “Restricted Sites” security zones
3. Cannot modify the Accessibility settings in Internet Explorer
4. Cannot save a webpage as an MHTML (.mht) file in Internet Explorer
5. Cannot set Custom Security settings in Internet Explorer

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