Install this click here then if you can see Norton mentioned in the list, which opens up very much the same as Add&Remove Programs in XP, you can run the un-install to clear it.
If you get that far, follow these instructions ...
During the un-install process you may be asked if you want to re-start your computer, DO NOT re-start at this point, let Revo continue. You will eventually get the option to Select All and to Delete - DO SO. You will be given the same options a second time, again DO SO, do not be picky, just accept all that Revo chooses.
After clicking on Finish, re-start your computer.