[header] How to experiment with the windows registry safely [title] Read about the windows registry before you start working on it. [step] Understand what it does, the various keys and components of the registry and how each affects windows. Microsoft provides detailed information on how to experiment with the windows registry safely and gives descriptions of the various keys and values. 
[title] Make sure you have a windows start up disk. [step] Create one if you don't have it already.