I tried to collect together a set of tools that I would say can get you out of most solvable computer crises!
It works too, believe me. Great to keep handy for when you might need it. Hard drives fail, things go wrong. This gives you confidence!
Great to take round to a friends to fix their machine too.
All the programs can be run directly from a USB memory stick so you do not have to do anything to the host computer if you are trying to diagnose a problem, fix a virus or a hard drive!!

The second edition of this highly successful book introduces the science and engineering of mechanical manipulation and provides a complete overview of the fundamental skills underlying the mechanics and control of manipulators. This edition features new material on Controls, Computer-Aided Design and Manufacturing, and Off-Line Programming Systems. Each chapter introduces the fundamentals of a topic and uses specially-designed examples to demonstrate the use of these principles. The first edition was the winner of the Society of Manufacturing Engineers' M. Eugene Merchant Manufacturing Textbook Award.