Hi!  Im new here and would like to know: " Can I BackUp  all of my system's files on
an external drive "?  
And how to do it?

Exuse my English writing,  I'm french from Québec  

Thanks to Ray and all of you, helpers!    

   In some versions of Windows it is possible and in some it is not because Windows keeps some files open.  If you are making a backup to replace system files if they become corrupt, a backup of the files that can be backed up should work.  If you are making a backup to have to restore Windows if it crashes, it is better to make a clone of the entire drive.  WinRescue does not make a clone.
   In Windows XP, 2000, and Vista, the registry files are kept open and so cannot be copied but WinRescue works around that and does make a copy of the registry.

  Thank you...
So as I can see i'm better to make a copy of the registry only!
To bad beccause I found the way to make a copy of my hard drive.

I appreciate your answer and your softwares !