Backing up Vista and XP to the same disk

[Guest]

I have an external hard disk which I plan to use to back up both my work (XP)
and home (Vista) systems.

The XP backup went fine (to a .bkf file) but when I try to do a Vista
Complete PC Backup I get a message saying "The backup could take up to 57GB
of disk space. Because a previous backup exists, all of this space might not
be required, and only the differences will be saved." The date given for the
most recent backup on the disk is the date of my XP backup.

I don't want to try to recover from a failed drive months down the line and
discover that either the Vista backup has overwritten the XP backup or that
they have become somehow mixed together and that neither works... Is it
possible for the two backups to live happily on the same disk?

Thanks

 

[peter]

Try creating 2 partitions on that drive...one for the XP backup another for
the Vista backup
peter