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Windows 8.1: The Missing Manual by David Pogue

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Chapter 21. Maintenance, Speed Tweaks & Troubleshooting

Your computer requires periodic checkups and preventive maintenance—pretty much like you, its human sidekick. Fortunately, Microsoft has put quite a bit of effort into equipping Windows 8.1 with special tools, all dedicated to keeping your system stable and fast. Here’s a crash course in keeping your PC—and its hard drive—humming.

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