First open IE8 Internet Options by clicking on Tools from the Internet Explorer navigation bar as shown in the below example image.
After clicking Internet Options the below configuration window will open.
Click the Security tab to display the below configuration window.
Make sure that Internet is highlighted at the top of the Internet Options configuration window as shown above and then click the Custom Level button to open the “Security Settings – Internet Zone” details window as shown below.
If you have made custom changes to the Internet Explorer settings previously you should note them so if you need to manually apply them after we reset the Internet Options Security Settings. Next to “Reset to:” change the drop down to Medium as shown below.
Once the drop down has been set to Medium click the Reset button to change the IE8 Security Settings to Medium level. After you click Reset a pop up warning will display as shown below.
Click the Yes button to reset the Internet Security Settings to the Medium level. Click the OK button to close the Security Settings details, then click the Apply button to save the changes, and then click the OK button to close the Internet Options window.