how I can I erase internet history
Tools - Internet Options - Delete history, cookies etc
Be warned it is a superficial method of cleaning but unless you've got a professional working on it, it should be good enough
you can NEVER NO MATTER WHAT even if you brakeand dispose of the computer erase its history
on Mozilla Firefox go to tools down to Clear Private Data or Ctrl+Shift+Del
Beat your computer with a sledgehammer.
Google is your friend.