Mark HachmanSenior Editor, PCWorld

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As PCWorld's senior editor, Mark focuses on Microsoft news and chip technology, among other beats. He has formerly written for PCMag, BYTE, Slashdot, eWEEK, and ReadWrite.

Windows 10 Mobile running on a Lumia 940XL.

Windows 10 Insider option makes desktop and mobile testing less scary

Microsoft's Release Preview Ring is for users who can't quite stomach the Fast Ring of Windows 10 Insider builds.

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Windows 10, revealed: You'll get more information from Microsoft in future updates

After months of keeping users in the dark about changes to Windows 10, Microsoft is flinging open the shutters and letting the light pour in. A new support page explains in more detail what its Windows 10 updates are doing to your PC.

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Bing Predicts begins March Madness early with NCAA tourney invitation predictions

Microsoft's new site uses its Bing Predicts methodology to predict whether a given university will be invited to the NCAA men's basketball tournament.

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Strong Taiwan quake appears to have little effect on chip industry

An earthquake measuring 6.4 on the Richter scale struck close to a major chip manufacturing hub in Tainan, Taiwan on Saturday morning local time. Some damage was reported to TSMC, a major chip manufacturer.

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The specter of Comcast as a wireless carrier is more than a little frightening

Comcast says it has registered to bid in the upcoming government wireless auction, suggesting that it is indeed considering offering wireless service.

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Microsoft imagines future NFL games played out on your coffee table, via HoloLens

From an improved sideline Surface experience to an audacious vision for HoloLens, Microsoft is digging deep into its role as an NFL technology partner.

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Screen set-top box and apps enforce the 'screen time' rules you set for your kids

Using software agents and a set-top box, Screen limits the time your kids spent watching TV and using computers, tablets, and phones to what you want.

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Madden, Bing pick Carolina Panthers to win Super Bowl 50

Electronic Arts' Madden 16 football simulation, as well as Microsoft's Bing algorithm, both have picked the Panthers to win the Super Bowl on Sunday.

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Windows Phone's next life: How Microsoft could recast it for productivity or services

Are Windows phones dead? Not hardly. But they're certainly changing, and Microsoft could have a few backup plans in the works.

Windows 10 Mobile Build 10136

Windows 10 Mobile Build 10586.71 edges closer to the final release for older phones

Microsoft fixes some annoying bugs in Windows 10 Mobile as it preps a broad rollout to older phones.

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Vaio confirms its Windows Phone will be launched this week

Mere days after Microsoft reported plummeting sales for its own Lumia handsets, Vaio says it will launch its own Windows 10 Mobile phone. Whether third parties like Vaio and Acer can succeed where Microsoft hasn't remains an open question.

Donald Trump

Microsoft's Bing just called the first four primaries for Donald Trump, Hillary Clinton

Microsoft said last year that its predictive Bing technology would be used to call the 2016 presidential election. So here we go.

The Lumia 950

Microsoft's Lumia may be a dead phone walking, as sales continue to fall

Microsoft said Thursday that its Lumia smartphone revenue fell by 53 percent—and that it expected a similar drop this quarter as well. With Lumia's future looking dim, we can only hope that rumors of a Surface phone might come true later this year.

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Preloading Windows 10 mobile apps like TripAdvisor is a desperation move for Microsoft

TripAdvisor said its app will come preloaded on millions of Windows 10 mobile and desktop devices—a practice most consumers despise, but one that Microsoft may be forced into.

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Windows 10 build 14251 fixes gaming bugs, but the roadmap for older phones is unclear

Call this Insider preview build 14251 a calm before the storm, as Microsoft tries to sync desktop and mobile Windows before further upgrades.