1. Click the 'Start' button and open 'Control Panel.'
2. Click 'Uninstall a Program' or 'Add/Remove Programs.'

3. Scroll down the list of programs to locate Internet Explorer and click 'Uninstall' or 'Remove.'
4. Click 'Next' or 'OK' to begin the removal process. Allow your system to reboot to complete the process.
5. Ensuring that your system meets the system requirements for Internet Explorer, then download and install it.
6. Restart the computer to finish the installation of Internet Explorer. Double click the Internet Explorer icon on the desktop and complete the setup wizard.