This document provides tips for preventative computer maintenance to maximize performance and minimize problems. It discusses common causes of system problems like dust, temperature, interference and software issues. It then offers advice for caring for different computer components like installing in a clean environment, monitoring for electrical disturbances, taking visual breaks from monitors, properly plugging in keyboards, using specified supplies for printers, and handling disks carefully with backups. The overall message is that minor preventative care can result in significant improvements to computer performance and uptime.