On the Start screen, swipe in from the right edge of the screen, and then tap Search. (If you're using a mouse, point to the upper-right corner of the screen, and then click Search.)
Enter Control panel, and then tap or click Apps.
In the search results, tap or click Control Panel.
Tap or click Programs.
Under Programs and Features, tap or click Turn Windows features on or off.
In the dialog box, select the Internet Explorer 10 check box, and then tap or click OK.
When prompted to restart your PC, tap or click Restart now.
After restarting, swipe in from the right edge of the Start screen, and then tap or click Search.
Enter Internet Explorer, and then tap or click Apps.
In the search results, swipe down on the Internet Explorer icon, and then tap Pin to Start and Pin to taskbar.
(If you're using a mouse, right-click Internet Explorer, and then click Pin to Start and Pin to taskbar.)