How can I keep my computer and its contents safe?

Use reliable, specialist security software and back up your information.

Make sure you create regular back-ups of your personal data as it's impossible to recreate precious files without a recent back-up.
If your PC has a built-in DVD or CD burner, backing up to DVD or CD is a simple and inexpensive way of keeping your memories and information safe. Remember to do a new back-up at least once a week.
Ensure you have reliable, up-to-date security software. Most security software packages are set to automatically download updates when they become available - this is an important protection strategy, don't switch it off.