This book covers topics relating to keeping computers in good condition, troubleshooting, computer problems and performing basic repairs on computers. The online instruction portion of modules in this book includes concepts related to computer parts, software, viruses and basic maintenance. If practical, both laptop and desktop computers will be used for these sessions. While these materials were primarily designed for users of Windows operating systems, open source operating systems are also Computer Maintenance, Troubleshooting and Repair are discussed. This section includes information about tasks you can perform to help ensure the trouble-free operation of your PC, and to ease the recovery of important information on your PC should problems arise in the future.