Your photos, music and data are just a virus or hard disk failure away from oblivion. Build a triple-layer defence using PC Authority's practical guide.

Now a true all-in-one package thanks to file and folder backup, but it can’t match Acronis for value.

Without support for differential backups and with a light feature set, Norton Ghost feels cheap, nasty and dated.

One of the practical devices for large back up jobs are external hard drive drives, which not only offer competitive capacities, but are easily portable and perfect for offsite storage. Maxtor's OneTouch II is pitched squarely at this type of application and, as the name suggests, makes it easier with a single button for back up.

The 1TB box, also available in smaller, less tough sizes.

A clever, convenient little drive that you can carry around with you in your pocket.

USB 2.0 hard disks are a convenient way of backing up your data, but if you want to share the files with other computers over a small office or home network they're not ideal. But Linksys has an alternative. The Network Storage Link (NSL) takes a USB 2.0 hard disk or flash drive and puts it on the network.