Backup as it should be: one click to set up, automatic afterwards. Backs up your whole computer and never disturbs your work (automatic pausing). You can access your files directly from the backup, or you can restore full hard disks.
The software also keeps multiple old backups of your data (you can choose how many), so you can easily retrieve files from the past or restore an older version of your hard disk.
Also included is a bootable rescue CD, so that you can restore your system even if it does not start anymore.
512 MB RAM, about 125 MB free space on hard disk