compression...
if you have any doubts, do a restore to test it all out




"Lucvdv" <name@null.net> wrote in message
news:t9s7p2dquctmiascvfijdkogf4iq9i3cm4@4ax.com...[color=blue]
>I just did a full backup of my Vista RTM to an USB disk.
>
> Before starting the backup I cleaned up unnecessary files and
> 'cleaned' th ehibernation file to reduce size.
>
> Drive C then still contained about 60 GB of files (little or no data
> files: those are stored on another drive, I backed up C: only).
>
>
> Because backup finished surprisingly fast, I took a look at the backup
> files afterward: there's only 15 GB. How come it's only 1/4 of the
> contents of my C drive?[/color]