The article Essential Utilities at Laptoplogic lists several freeware utilities that should be useful to everyone who owns a notebook (with an Intel CPU that is, a guide for AMD will follow). All tools mentioned can be described as system tools that either show system information, test hardware or tweak it. For example tools to test the notebooks memory (Memtest86) are included as well as dead pixel tester for the LCD screen.
You might have heard about some of the utilities and you can easily live without some of them but it´s still a great resource if you want to check your notebooks system hardware. They are even greater if you want to purchase a second hand notebook, with those utilities at hand you can perform an in depth system check before you purchase the notebook. (You could ask the seller to use the utilities for you and send you the results if he is not living nearby).
Update: The link to the guide is automatically redirected to the website's homepage. We have removed the link as a consequence. Instead of directing you to another website that may or may not cease to operate in the future, we have made the decision to present you with our top eight list:
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