Mark HachmanSenior Editor, PCWorld

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.

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Microsoft has closed its e-bookstore, and everything you purchased will vanish in July

Microsoft has decided to withdraw from selling ebooks, offering refunds for everything you've purchased. But anything you've purchased will vanish by this summer.

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Google Gmail celebrates 15 years by adding scheduled email and Smart Compose for mobile

As Gmail turns 15, Google adds features like scheduled email and Smart Compose for writing email on the go.

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Wunderlist's death by a thousand cuts continues as Microsoft axes Cortana integration

As of April 15, you'll no longer be able to access Wunderlist via Windows 10's Cortana.

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Update: Google Gmail, Microsoft Outlook.com add 'dynamic email,' to avoid the pain of new tabs

Google's Gmail will suck in a small corner of the internet to allow you to research hotel rooms or add a pin to your Pinterest board from within an email. Outlook.com will as well.

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Vivaldi 2.4 enhances the browser's tab wizardry

Vivaldi has a reputation for being an extremely configurable browser, and it's even more flexible with release 2.4 and its icon and tab rearranging.

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5G could be the foundation of next-gen 'cloud VR'

AT&T, Ericsson, and a number of companies showed off streamed VR to headsets, using 5G to minimize nausea-inducing latencies while keeping the resolutions high.

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Update: Asus issues fix for ShadowHammer attack, and a tool to detect if your PC was affected

Kaspersky Lab confirmed that perhaps a million Asus PCs have unwittingly downloaded an infected version of the Asus Live Update utility using an attack called ShadowHammer. Asus has issued a patch.

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Intel kills the Compute Card, a small-form-factor modular computing product that didn't stick

Intel said Thursday that it will sell out existing inventory of its small, modular Compute Cards but make no further investments.

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Data caps must die: How Google and Microsoft's cloud gaming ambitions could conquer ISP greed

If Google Stadia, Microsoft XCloud, and Sony PlayStation Now are to succeed, ISP data caps have to die. For once, some big companies might be fighting right alongside consumers against ISP greed.

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Intel promises 9th-gen mobile Core processors will arrive 'very, very soon'

Intel promises that its 9th-generation mobile Core chips, specifically the H-series parts for premium notebooks, are just around the corner.

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Microsoft Teams taps AI to boost new background, whiteboarding features

Microsoft Teams turns two this week, and Microsoft is leaning on its investments in artificial intelligence to improve the capabilities of its collaboration package.

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Microsoft ports Xbox Live to Android, iOS to extend the reach of Xbox

Microsoft announces an initiative tied to the Game Developers Conference to bring games on Android, iOS and Switch to its Xbox Live platform.

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HP recalls 78,500 more laptop batteries because of fire concerns

If you own an HP ProBook, HP x360, or an HP ZBook, the government and HP are warning that batteries sold inside them or as accessories may overheat and are being recalled.

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Microsoft ports DirectX 12 to Windows 7, giving some older PC games a performance boost

Microsoft is porting DirectX 12 to Windows 7 on a game-by-game basis. The first game to deliver will be World of Warcraft, with others to follow.

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Android phone mirroring arrives in new Windows 10 preview build 18356

Only a small subset of users will be able to take advantage of the new feature, which arrives for Windows 10 Insiders.