Microsoft Fix It Center

Microsoft Fix It Center is a tool developed by Microsoft to help users solve problems on Windows. 

It can act preventively (running the various options before even you feel the problem) or repairing existing damage. Everything works with one click.
After installing, the use of this application is in fact very simple. Select the option where you feel the problems in Windows. If it is the first time you are using the option, click install and then click Run. After first use, just click Run at right of the option.
This utility works for Windows XP, Vista and Server.