Click the gear icon near the top-right corner of the Internet Explorer window and click "Internet Options."
Click the "Advanced" tab at the top of the Internet Options window.
Scroll down to the "Browsing" section in the list of advanced options.
Uncheck the "Disable Script Debugging (Internet Explorer)" check box by clicking it.
- The "Disable Script Debugging (Other)" option on the advanced pane applies to other applications that embed Internet Explorer to show Web pages, such as Microsoft Outlook.