1. Open the Internet Explorer web browser.
2. Click 'Tools' from the top navigation bar.

3. Click 'Internet Options,' then click the 'Advanced' tab.
4. Check the option to 'Disable Script Debugging' and uncheck the 'Display a Notification About Every Script Error.' On Windows XP, Service Pack 2 computers, also check the 'Disable Script Debugging (other)' option.
5. Click 'Apply' to apply the settings, then click 'OK' to close the dialog box. Close the browser. The debugger is disabled.