You should be able to go into Control Panel > Add and remove programs > Add/Remove windows components, then select internet explorer and install it.

My personal suggestion is to download firefox and call it a day. The only url I ever enter into IE is www.mozilla.com Out of curiosity, what OS are you on and what version of IE are you running?

You could also try re-installing your NIC driver. Click "start" > Right click "My Computer" > choose "Properties". Click the "Hardware" tab. Click on "Device Manager". Click on the '+' sign next...