Back up your files
Your computer is probably used to store some of your most important and private files such as family photos, bank information and business documents. Imagine losing all of those files in a computer crash caused by a security breach. To avoid this inconvenience, you should make back-ups of your important files by regularly copying them to a CD or DVD, external hard drive or memory stick. Then, if you lose your files, you can simply restore them from your back-ups.