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    Closing your Apple Watch rings can lower less stress, improve sleep – and win you prizes

    Kerry Wan/ZDNETClosing your Apple Watch’s activity rings could be good for your health. That’s according to a new data analysis in the Apple Heart and Movement Study, which found positive associations between activity rings’ closure and sleep, heart health, and mental well-being. The analysis of data, contributed by more than 140,000 participants, found that people who regularly closed their activity rings were 48% less likely to wake up frequently during the night, 73% less likely to experience an elevated resting heart rate, and 57% less likely to report elevated stress. Also: The best Apple Watches of 2025While Apple’s Heart and Movement Study’s findings are new, the notion that exercise is good for your sleep, heart, and stress isn’t. Smartwatches and fitness trackers like the Apple Watch encourage healthy and active behavior through constant reminders and incentives to exercise and make health-minded lifestyle decisions. That’s especially top of mind ahead of the Apple Watch’s 10th anniversary on April 24. On the smartwatch’s birthday, Apple Watch users can earn a Global Close Your Rings Day limited-edition award and an animated sticker for Messages by closing their activity rings. Go on a bike ride, get your steps in on a long walk, or swim laps in a pool; then share your activity using #CloseYourRings on social media.  More

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    How to install Ubuntu Server in under 30 minutes

    kutubQ/Getty Images For years, Ubuntu Server has been my go-to server operating system. It is one of the most widely used server OSs on the planet (especially when you add cloud deployments to the mix) and one of the most user-friendly server platforms available. To make Ubuntu Server even more appealing, you can download and […] More

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    This SteamOS clone is the best Linux distro for gamers

    Jack Wallen / Elyse Betters Picaro / ZDNETWhen I attended my first Linux convention, a company named Loki Games had a booth that was rather popular. Linux users flocked to the booth to see if a company could bring to the operating system one thing it was sorely missing: Games.Also: The best VPN for gaming: Expert tested and reviewedLoki Games had already delivered several titles by porting them from Windows to Linux. I played several of those games (I still have a few, I believe) and found them to be very well done. The problem wasn’t the company’s ability but the users’ willingness to pay for their products. In the end, Linux users didn’t want to buy software. They had become so accustomed to getting all of their software for free that the idea of shelling out hard-earned cash was shocking. Loki Games failed. After that, gaming on Linux stumbled and stuttered. Sure, there was Wine, and with some effort, you could get games to play. I remember the first time I was able to play Diablo on Linux — what a thrill and, back then, an accomplishment.Also: How to install Steam on Linux to start playing thousands of gamesToday, there’s Steam, which makes gaming on Linux exponentially easier. Steam also makes a large number of games available for Linux. Some Linux distributions have also taken it upon themselves to make gaming as easy as possible for users, such as Bazzite. More

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    Windows warning: Don’t delete that weird ‘inetpub’ folder. Already did? Here’s your fix

    Lance Whitney / Elyse Betters Picaro / ZDNETWindows 10 and Windows 11 users who installed last week’s April Patch Tuesday updates may have noticed a strange new folder appear on their system drive, or C drive. Also: 10 pesky Windows 11 24H2 bugs still haunting PCs despite several patchesNamed “inetpub,” the folder is associated with Microsoft’s IIS (Internet Information Services), a component for hosting a website on your PC.  If you do not use IIS, you may think the new folder is unnecessary and simply delete it. Not so fast.Leave it aloneThe new folder is needed, though not for IIS. Instead, it is part of a security fix designed to squash a bug that could leave your PC vulnerable to attack. Specifically, the CVE-2025-21204 security flaw involves a scenario in which symbolic links are not handled properly and, therefore, could be exploited by an attacker to access or modify certain files and folders. Also: How to replace your Windows 11 Start menu with a better alternative – including my favoriteThat certainly sounds like a glitch that needed to be patched. The problem is that Microsoft failed to communicate why the inetpub folder was added. That led to confusion among Windows users and likely prompted many to delete the folder, thinking it had been created by mistake. To address the confusion, Microsoft told Windows Latest that users should not remove the folder. The company also updated its advisory to clarify the purpose of the folder. Also: Windows 11 is getting a secret weapon for boot failures – how it works”After installing the updates listed in the Security Updates table for your operating system, a new %systemdrive%inetpub folder will be created on your device,” Microsoft said. “This folder should not be deleted regardless of whether Internet Information Services (IIS) is active on the target device. This behavior is part of changes that increase protection and does not require any action from IT admins and end users.”If you see the inetpub folder in Windows, just leave it alone.  More

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    I tested the $13 multitool that everyone is talking about. Here’s my verdict

    <!–> ZDNET’s key takeaways Amazon Basics’ 15-in-1 stainless steel multitool is available at Amazon for $13. It’s a well-made 15-in-1 with a myriad of useful tools, and the price can’t be beat. Not every tool will be useful for everyone – I’ve never used a fish scaler or hook remover. –> I’ve been covering lots […] More

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    How I used GitHub Spark to build an app with just a one-sentence AI prompt

    DrPixel/Getty Images Have you ever wanted to build your own custom application but didn’t want to take the time to do any of the pesky learning that software development requires? If so, a new experimental project from GitHub might just make your dreams come true. GitHub Spark lets you build what the company calls “micro […] More

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    OpenAI used to test its AI models for months – now it’s days. Why that matters

    Elyse Betters Picaro / ZDNETOn Thursday, the Financial Times reported that OpenAI has dramatically minimized its safety testing timeline.Also: The top 20 AI tools of 2025 – and the No. 1 thing to remember when you use themEight people who are either staff at the company or third-party testers told FT that they had “just days” to complete evaluations on new models — a process they say they would normally be given “several months” for. Competitive edgeEvaluations are what can surface model risks and other harms, such as whether a user could jailbreak a model to provide instructions for creating a bioweapon. For comparison, sources told FT that OpenAI gave them six months to review GPT-4 before it was released — and that they only found concerning capabilities after two months. Also: Is OpenAI doomed? Open-source models may crush it, warns expertSources added that OpenAI’s tests are not as thorough as they used to be and lack the necessary time and resources to properly catch and mitigate risks. “We had more thorough safety testing when [the technology] was less important,” one person, who is currently testing o3, the full version of o3-mini, told FT. They also described the shift as “reckless” and “a recipe for disaster.” Also: This new AI benchmark measures how much models lieThe sources attributed the rush to OpenAI’s desire to maintain a competitive edge, especially as open-weight models from competitors, like Chinese AI startup DeepSeek, gain more ground. OpenAI is rumored to be releasing o3 next week, which FT’s sources say rushed the timeline to under a week. More