|IE and Chrome are two different things. Internet Explorer is your browser and Chrome is something that your browser uses.|
You should not have installed IE10 on Vista, if that is what you are using. IE9 is the max.
Go to Control Panel > Programs and Features, and uninstall it. Your browser should then revert back to IE9.
If that doesn't help then use System Restore back to a date/time before you installed IE10.
I trust you didn't get an "IE10 for Vista" from some strange website because anything might have happened. If so, best you do System Restore anyway.
Always pop back and let us know the outcome - thanks