How to Reformat a Dell 640M

Backing Up Files

1). Turn on your laptop. Click "Start."
2). Click "Control Panel" and select the "System and Maintenance" option.
3). Insert a CD or DVD into your laptop's optical drive. Click "Backup and Restore."
4). Select "Create new, full backup" from the window's left sidebar. Click "OK" to begin the backup process. Windows will prompt you to add more storage disks as each disk fills up with data.