Now a day's computer is a breath for everybody and people have laptop with every day motion. However, computers may fail now and then. So, basic computer maintenance and repair are required frequently. Some common problems are random error messages, computer being too slow, blue screen, virus attack, automatic rebooting and others. It's a common misconception that repairing such computer problems requires a lot of expertise. In actuality, any common computer user can repair simple computer problems without calling an experienced technician. This book can help users to get step-by-step instructions for maintaining and repairing computer problems easily. The book covers an introduction of PC hardware and software , practical and quick guidelines for repairing a PC , most common PC problems and solutions , fixing windows problems , BIOS setup configuration and diagnostic tools, data backup and recovery strategies , protecting P C from virus and unauthorized access.