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Microsoft Says This Free App Speeds Up Your PC With One Click. I Put It to the Test

You can pay for third-party PC optimization software to make your computer run more smoothly, but Microsoft PC Manager does ...
来自MSN

How does an Internet speed test actually work?

What is an Internet Speed Test? If you’ve ever wondered whether your internet connection is performing as expected, running a speed test is a quick way to find out. A speed test measures your current ...