Your Data. Are you prepared to lose all your pictures, email, documents and financial information stored on your computer? Hard drive failure is inevitable. It’s not a question of whether or not it will happen, but when it is going to happen. Even brand new computers can have defective hard drives. If you don’t know how or where all your information is stored in the computer, how can you retrieve it in a disaster? A good computer person knows these things and puts measures in place to prevent data loss.