Runtime error is an error message which prevents further running a program or software from working properly. It halts the software application or webpage from running by giving an error message. Usually it occurs when the webpage tries generating a popup while the same window still exists, and can’t find anything. There might be some other reasons also for getting this Internet Explorer runtime error.
Steps to Fix Runtime Error in IE
Internet Explorer having option to disable this runtime error from showing. You can follow below steps to eradicate or to avoid this error
Step 1 : Open Internet Explorer browser
Step 2 : Go to Tools menu
Step 3 : Go for “Internet Options” presented in the drop down menu
Step 4 : Now opt for clicking the “advanced tab” available in the Internet Options dialog box
Step 5 : Next scroll down to the Browsing section
Step 6 : Check both the checkboxes “Disable script debugging (Internet Explorer)” and “Disable script debugging (Other)”

Step 7 : Then uncheck the checkbox as “Display a notification about every script error”
Step 8 : Now accomplish the thing by closing the Internet Option dialog box
If the computer has multiple users, user wise you will have to make the settings as mentioned above. If still the problem persists then possible that the problem might be associated with some malware or viruses and need an urgent attention of your system administrator or alternatively you can run a full virus scan on your computer
Instead you can download Microsoft Fix it 50043 and by following the steps as guide by this Internet Explorer Debugging Wizard, and see how Microsoft will disable this error message for you
