›› Should I change my services from the default for security or performance sake?
Chances are you will not need to change the default of your services if you are the average user. In fact, there is strong caution against changing the default of your services unless you know what you're doing and you are sure you will or will not need that particular service. However, there is the argument that above-average users should disable any services that they don't need or intend to use in order to guard against security risks like worms, viruses, and hackers. As far as performance goes, tweaking your default settings will only give you minimal increased speed and performance with today's hardware, not enough to really notice. All in all, if you're unsure, it's probably best to leave them alone!
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