Summarize:

Click the Start button and type “Update” in the search box. Click “Windows Update” and choose the pane that reads, “Check for updates.” Click “Install updates” on any essential updates that appear. Click “Ok” when you are finished. Windows Vista and Windows XP with Service Pack 3 will also work. The Bing Bar will run on this Internet browser.
Update your computer before you install. Ensure you are using Windows 7 or later. Open Internet Explorer on your computer.