Unless you have something like Norton or Roxio, you can't "restore" IE. You can, however, repair it.I wanted to know how to restore Internet Explorer to where it was prior to him attempting to download something.
Go to Start. Click Run. Type: msinfo32
When it opens, Click Tools. Click Internet Explorer Repair Tool.
It may tell you that you can't repair, in which case you will have to reinstall. Settings/emails, etc; should be unaffected.