Try it in safe mode. Then reboot and look up IEFIX to automate IE repairs.
With the last few weeks of new IE exploits, consider trying another browser for daily use.
If I attempt to click the clear history key in internet options, it locks up my system and the same occurs when I click the clear icon in the TaskBar Start Menu section. If I hit Cont Alt Delete, it shows (not responding). This just recently began. Can anyone help.