Mike Halsey an MVP has written an book Windows 7 Power Users Guide which contains many guides and tweaks which can be done on Windows 7.
The book is for people of all technical ability from complete novices to IT Pros, and the best part is that it is FREE of cost.
The book contains 16 chapters and is a guide on how to get the very best out of Windows 7 from installation to configuration and advanced operations. It includes step-by-step guides, screenshots and diagrams on every page, quick tips throughout the book and is presented in full color.
You may download this book by using following link :-