Windows Reliability and Performance Monitor is a useful utility inside Windows Vista that helps you analyze the performance of your Vista machine over time. Using this utility, you can easily get to know about hardware devices and software programs that are creating problems on your system or causing the machine to shut down unexpectedly.
Vista’s Reliability Monitor makes it easy to track your system’s stability over time. This can be a big help in troubleshooting problems because it allows you to determine what the problem was and when it occurred.
To view your Vista Reliability Index, type perfmon in the Windows Run dialog. Next switch to the Reliability Monitor under Monitory Tools and note the score and share with us via comments.