I upgraded to Windows 8.1 Preview about 10 days ago. Everything was working good but since past three days i am facing several problems with the new IE 11. It freezes, crashes, looses internet connection, etc every now and then. But rest of the system is working good. I think re-installing Internet explorer itself will fix the problem. I tried searching it in the installed programs but it wont appear. Can anyone here please tell me how can we re-install the browser? Also please suggest if there is any alternate solution for the same.