There are no sure-fire, easy solutions to any STOP error message. Users delight in thinking that there are, but it just ain't so.
You will realize that if you bother to visit http://www.aumha.org/a/stop.htm
, a website that is a basic refererence for dealing with all STOP errors.
If you click on 7E in the left column, you can read all about it.
As for fixboot, read all about it at http://pcsupport.about.com/od/termsf/p/fixboot.htm