Microsoft has successfully tested a microfluidic cooling system that removed heat up to three times better than cold plates currently used in datacenters. The technology etches tiny channels directly into silicon chips, allowing cooling liquid to flow directly onto the heat source. In lab tests announced September 23, 2025, the system reduced the maximum temperature rise inside GPUs by 65%. The channels, roughly the width of human hair, were optimized using AI to create bio-inspired patterns resembling leaf veins.

Microsoft collaborated with Swiss startup Corintis on the design. The cooling fluid can operate at temperatures as high as 70C (158F) while maintaining effectiveness. The company demonstrated the technology on servers running Microsoft Teams services, where the improved cooling enables overclocking during demand spikes that occur when meetings start on the hour and half-hour. Microsoft is investigating incorporating microfluidics into future generations of its first-party chips as the company plans to spend over $30 billion on capital expenditures this quarter.

Microsoft is working on bringing support for setting a video as your desktop wallpaper on Windows 11. From a report: Hidden in the latest Windows 11 preview builds, the feature lets you set an MP4, MOV, AVI, WMV, M4V, or MKV file as your wallpaper, which will play the video whenever you view the desktop.

For many years, users have wanted the ability to set a video as a desktop background. It's a feature that many Linux distributions support, and macOS also supports the ability to set a moving background as your lock screen. Windows Vista did support setting videos as your wallpaper, but only as part of the Ultimate SKU via a feature called DreamScene.

Nvidia will invest up to $100 billion in OpenAI as the AI lab builds data centers requiring 10 gigawatts of power capacity. The 10-gigawatt deployment equals 4 to 5 million GPUs -- the same number Nvidia will ship globally this year. Building one gigawatt of data center capacity costs $50 to $60 billion, including approximately $35 billion for Nvidia chips and systems. The first phase begins in the second half of 2026 using Nvidia's next-generation Vera Rubin systems.

The investment adds Nvidia to OpenAI's investor roster alongside Microsoft, SoftBank, and Thrive Capital at a $500 billion valuation. Nvidia CEO Jensen Huang described the investment as "additive to everything that's been announced and contracted."

Major U.S. corporations are mandating more office time but seeing minimal compliance changes. Companies now require 12% more in-office days than in early 2024, according to Work Forward data tracking 9,000 employers. Yet Americans continue working from home approximately 25% of the time, unchanged from 2023, Stanford economist Nicholas Bloom's monthly survey of 10,000 Americans shows.

The New York Times ordered opinion and newsroom staff to four days weekly starting November. Microsoft mandates three days beginning February for Pacific Northwest employees. Paramount and NBCUniversal gave staff ultimatums: commit to five and four days respectively or take buyouts. Amazon faced desk and parking shortages after its full-time mandate, temporarily backpedaling in Houston and New York. Nearly half of senior managers would accept pay cuts to work remotely, a BambooHR survey of 1,500 salaried employees found.

Near Microsoft's headquarters in Redmond, the Five Stones coffee shop advertised for a barista a few months ago — and started getting resumes from "people who listed Microsoft and other tech companies," writes the Wall Street Journal: The applicants typically had master's degrees and experience in graphic design or marketing roles, Andrews said — sometimes senior ones. They were applying to jobs at Five Stones that would pay Redmond's minimum wage, $16.66 an hour. Five Stones hasn't yet hired such candidates because the coffee shop gives priority to more traditional entry-level baristas, like high-schoolers...

[Microsoft and Amazon] have laid off more than 46,000 employees since 2023, according to Layoffs.fyi, which tracks workforce reductions. That represents 85% of layoffs by Seattle-area tech companies... As Amazon and Microsoft have made cuts — and other local tech firms including Expedia and Redfin have followed suit — the effects have rippled through Seattle's other business sectors. Weakness in payroll and sales tax contributed to a projected $146 million shortfall in revenue over the next two years. Restaurant and retail spending is down in the business and shopping districts surrounding Amazon's and Microsoft's campuses, with total transactions falling by as much as 7% in some popular areas in the past year, according to data from Square. In the first half of 2025, around 450 restaurants closed in Seattle, or about 16% of its total. "At the halfway point of the year, we've already seen as many closures as we'd usually see in a full year," said Anthony Anton, chief executive officer of the Washington Hospitality Association.

Uber driver Juan Prado made six figures in 2021, often shuttling passengers in town for job interviews and doing frequent drop-offs near downtown tech offices. Now, he said, demand is much lower. "There are moments where you can be online, and in certain areas, it shows nothing...." Seattle tech firms are asking for significantly fewer job placements than years ago, said Noelle McDonald, senior vice president at recruiting company Aquent, which counts Amazon and Microsoft as clients. Hiring windows have lengthened and open roles receive around 10 times as many applications.
And of course, "Commercial real-estate vacancies stand at a record high as offices built to accommodate a boom sit empty... "

While some laid-off employees launched their own startups, "the outlook for many tech workers is dour as companies invest in software tools they can use to streamline teams," the article points out. Microsoft CEO Satya Nadella "has said the company is increasingly looking to AI to perform coding and other tasks once done by people," while in June, Amazon "said its workforce would shrink going forward."

The consumer advocacy nonprofit PIRG (Public Interest Research Group) is now petitioning Microsoft to reconsider pulling support for Windows 10 in 2025, since "as many as 400 million perfectly good computers that can't upgrade to Windows 11 will be thrown out." In a petition addressed to Microsoft CEO Satya Nadella, the group warned the October 14 end of free support could cause "the single biggest jump in junked computers ever, and make it impossible for Microsoft to hit their sustainability goals." About 40% of PCs currently in use can't upgrade to Windows 11, even if users want to... Less than a quarter of electronic waste is recycled, so most of those computers will end up in landfills.
Consumer Reports recently also urged Microsoft to not to "strand millions of customers.". And now more groups are also pushing back, according to a post from the blog Windows: Central The Restart Project co-developed the "End of 10" toolkit, which is designed to support Windows 10 users who can't upgrade to Windows 11 after the operating system hits its end-of-support date.
They also note that a Paris-based company called Back Market plans to sell Windows 10 laptops refurbished with Ubuntu Linux or ChromeOS Flex. ("We refuse to watch hundreds of millions of perfectly good computers end up in the trash as e-waste," explains their web site.) Back Market's ad promises an "up-to-date, secure operating system — so instead of paying for a new computer you don't need, you can help us give this one a brand new life."

Right now Windows 10 holds 71.9% of Microsoft's market share, with Windows 11 at 22.95%, according to figures from StatCounter cited by the blog Windows Central. And HP and Dell "recently indicated that half of the global PCs are still running Windows 10," according to another Windows Central post...

U.S. President Donald Trump plans to impose a new $100,000 application fee for H-1B worker visas, a White House official said, potentially dealing a big blow to the technology sector that relies heavily on skilled workers from India and China. From a report: As part of his broader immigration crackdown, the Republican president was expected to sign a proclamation as early as Friday restricting entry under the H-1B visa program unless the application fee is paid, the official said.

The H-1B program has become critical for technology and staffing companies who rely on foreign workers to fill a variety of technical roles. Amazon had over 10,000 H-1B visas approved in the first half of 2025, while Microsoft and Meta had over 5,000 H-1B visa approvals each, according to U.S. Citizenship and Immigration Services. Roughly two-thirds of jobs secured through the visa program are computer-related, according to U.S. government figures, but employers also use the visa to bring in engineers, educators and healthcare workers.

Microsoft will increase Xbox Series X and Series S console prices in the United States on October 3. The Series X rises to $649.99 from $599.99 and the 512GB Series S increases to $399.99 from $379.99. The 1TB Series S moves to $449.99 from $429.99. The Series X Digital Edition reaches $599.99 from $549.99 and the 2TB Galaxy Black Special Edition climbs to $799.99 from $729.99. Microsoft cited macroeconomic changes for the increases. Console prices outside the US and controller and headset prices domestically remain unchanged. The company raised console prices globally in May.

Meta is moving to break into the wholesale power-trading business to better manage the massive electricity needs of its data centers. Bloomberg: The company, which owns Facebook, filed an application with US regulators this week seeking authorization to do so. A Meta representative said it was a natural next step to participate in energy markets as it looks to power operations with clean energy.

Buying electricity has become an increasingly urgent challenge for technology companies including Meta, Microsoft and Alphabet's Google. They're all racing to develop more advanced artificial intelligence systems and tools that are notoriously resource-intensive. Amazon, Google and Microsoft are already active power traders, according to filings with US regulators.

alternative_right writes: Austria's armed forces have switched from Microsoft's Office programs to the open-source LibreOffice package. The reason for this is not to save on software license fees for around 16,000 workstations. "It was very important for us to show that we are doing this primarily (...) to strengthen our digital sovereignty, to maintain our independence in terms of ICT infrastructure and (...) to ensure that data is only processed in-house," emphasizes Michael Hillebrand from the Austrian Armed Forces' Directorate 6 ICT and Cyber.

This is because processing data in external clouds is out of the question for the Austrian Armed Forces, as Hillebrand explained on ORF radio station O1. It was already apparent five years ago that Microsoft Office would move to the cloud. Back then, in 2020, the decision-making process for the switch began and was completed in 2021.

Security researcher Dirk-jan Mollema discovered two vulnerabilities in Microsoft's Entra ID identity platform that could have granted attackers administrative access to virtually all Azure customer accounts worldwide. The flaws involved legacy authentication systems -- Actor Tokens issued by Azure's Access Control Service and a validation failure in the retiring Azure Active Directory Graph API.

Mollema reported the vulnerabilities to Microsoft on July 14. Microsoft released a global fix three days later and found no evidence of exploitation. The vulnerabilities would have allowed attackers to impersonate any user across any Azure tenant and access all Microsoft services using Entra ID authentication. Microsoft confirmed the fixes were fully implemented by July 23 and added additional security measures in August as part of its Secure Future Initiative. The company issued a CVE on September 4.

An anonymous reader shares a report: Microsoft is adding a whole load of AI agents to Teams today, promising Copilot assistants for every channel, meeting, and community. The new agents will also work across SharePoint and Viva Engage, and are rolling out for Microsoft 365 Copilot users.

Facilitator agents will now sit in on Teams meetings, creating agendas, taking notes, and answering questions. Agents can also suggest time allotments for different meeting topics -- letting participants know if they're running over -- and create documents and tasks. A mobile version is designed to be activated "with a single tap" so you can make sure the agent doesn't miss out on "a quick hallway chat or a spontaneous in-person sync." Channel agents are designed to answer questions based on a channel's previous conversations and meetings and can also generate status reports for a project the same way.

Microsoft is now prioritizing Anthropic's Claude 4 over OpenAI's GPT-5 in Visual Studio Code's auto model feature, signaling a quiet but clear shift in preference. The Verge reports: "Based on internal benchmarks, Claude Sonnet 4 is our recommended model for GitHub Copilot," said Julia Liuson, head of Microsoft's developer division, in an internal email in June. While that guidance was issued ahead of the GPT-5 release, I understand Microsoft's model guidance hasn't changed.

Microsoft is also making "significant investments" in training its own AI models. "We're also going to be making significant investments in our own cluster. So today, MAI-1-preview was only trained on 15,000 H100s, a tiny cluster in the grand scheme of things," said Microsoft AI chief Mustafa Suleyman, in an employee-only town hall last week.

Microsoft is also reportedly planning to use Anthropic's AI models for some features in its Microsoft 365 apps soon. The Information reports that the Microsoft 365 Copilot will be "partly powered by Anthropic models," after Microsoft found that some of these models outperformed OpenAI in Excel and PowerPoint.

Microsoft will invest $30 billion in the U.K. through 2028 to expand AI infrastructure and operations, including building the country's largest supercomputer with 23,000 GPUs in partnership with Nscale. CNBC reports: On a call with reporters on Tuesday, Microsoft President Brad Smith said his stance on the U.K. has warmed over the years. He previously criticized the country over its attempt in 2023 to block the tech giant's $69 billion acquisition of video game developer Activision-Blizzard. The deal was cleared by the U.K.s competition regulator later that year.

"I haven't always been optimistic every single day about the business climate in the U.K.," Smith said. However, he added, "I am very encouraged by the steps that the government has taken over the last few years." "Just a few years ago, this kind of investment would have been inconceivable because of the regulatory climate then and because there just wasn't the need or demand for this kind of large AI investment," Smith said. Microsoft's announcement comes as President Donald Trump embarks on a state visit to Britain where he's expected to sign a new deal with U.K. Prime Minister Keir Starmer "to unlock investment and collaboration in AI, Quantum, and Nuclear technologies," the government said in a statement late Tuesday.

Consumer Reports has urged Microsoft to keep supporting Windows 10 beyond its October 2025 cutoff, saying the move will "strand millions of consumers" who have machines incompatible with Windows 11. The Verge reports: As noted by Consumer Reports, data suggests that around 46.2 percent of people around the world still use Windows 10 as of August 2025, while around 200 to 400 million PCs can't be upgraded to Windows 11 due to missing hardware requirements.

In the letter, Consumer Reports calls Microsoft "hypocritical" for urging customers to upgrade to Windows 11 to bolster cybersecurity, but then leaving Windows 10 devices susceptible to cyberattacks. It also calls out the $30 fee Microsoft charges customers for "a mere one-year extension to preserve their machine's security," as well as the free support options that force people to use Microsoft products, allowing the company to "eke out a bit of market share over competitors."

Consumer Reports asks that Microsoft continue providing support for Windows 10 computers for free until more people have upgraded to Windows 11.

AI will enable three to four-day workweeks, Zoom CEO Eric Yuan told The New York Times, joining Microsoft's Bill Gates, Nvidia's Jensen Huang and JPMorgan's Jamie Dimon in predicting shorter schedules. Yuan also acknowledged AI will eliminate some positions, particularly entry-level engineering roles where AI can write code, but argued new opportunities will emerge managing AI agents. Gates previously suggested two to three-day weeks within 10 years during a February appearance on The Tonight Show.

Microsoft is adding the free Microsoft 365 Copilot Chat and agents to Office apps for all Microsoft 365 business users today. From a report: Word, Excel, PowerPoint, Outlook, and OneNote are all being updated with a Copilot Chat sidebar that will help draft documents, analyze spreadsheets, and more without needing an additional Microsoft 365 Copilot license.

"Copilot Chat is secure AI chat grounded in the web -- and now, it's available in the Microsoft 365 apps," explains Seth Patton, general Manager of Microsoft 365 Copilot product marketing. "It's content aware, meaning it quickly understands what you're working on, tailoring answers to the file you have open. And it's included at no additional cost for Microsoft 365 users."

While this free version of Copilot will rewrite documents, provide summaries, and help create slides in PowerPoint, the $30 per month, per user Microsoft 365 Copilot license will still have the best integration in Office apps. The Microsoft 365 Copilot license is also not limited to a single document, and can reason over entire work data.

TechCrunch reports: Thanks to a pledge to unbundle its corporate messaging app Teams from its productivity suites, Microsoft has managed to slip unscathed through a major antitrust investigation by the European Commission that could have resulted in massive fines for the tech giant.

The Commission on Friday okayed Microsoft's concessions to address the EU's competition concerns over the company including Teams along with the rest of its Office productivity suite for free, concluding a multi-year investigation that was sparked by complaints from rival office messaging app Slack in 2020. Microsoft has promised that for the next seven years, it will provide Microsoft 365 and Office 365 without Teams at a lower price and will let customers choose whether they want to pay more to add the collaboration app to the suites...

Microsoft is voluntarily offering some versions of both its productivity suites without Teams at a 50% lower price compared to versions that bundle the app, worldwide. And Microsoft dodged punitive measures and a big fine, as the Commission's penalties for breaching competition rules can reach up to 10% of annual global revenue — which, considering the tech giant last year recorded $245 billion in revenue, would have been truckloads of money.
The article adds one more interesting detail. "The Commission has also managed to get Microsoft to agree to open up its APIs to enable interoperability for key features between its suite and third-party messaging and collaboration tools, as well as let them export their data out of teams for the next five years..." The Commission's official announcement says this will "open up the market for other providers of communication and collaboration tools in Europe."

And Microsoft will also allow customers with long-term licenses the option of switching to a suite switch without Teams...

Paramount and Comcast's NBCUniversal are joining Microsoft in telling employees "they could face consequences if they don't return to the office more frequently," reports the Washington Post: NBCUniversal sent a memo to its employees telling them to return to the office four days a week starting in January [with the option to work remotely on Fridays]. Last week, Paramount told employees to return five days a week, with the first group starting in January. Both Paramount and NBCUniversal said they would offer severance packages to eligible employees who are unwilling or unable to make the switch... Companies have been cracking down on flexible work for the past several years, with Goldman Sachs being one of the first to implement a five-day office policy. Since then, others have joined in including Amazon, AT&T, JPMorgan Chase and the federal government...

Overall, the number of people working full time in office hasn't changed much over the past couple of years. About 61.7 percent of salaried employees worked from an office full time in August, according to data from university researchers Jose Maria Barrero, Nicholas Bloom and Steven J. Davis, who are studying the matter. That is down one percentage point from August 2024, their research shows. During the same period, the amount of people working remotely dropped two percentage points and those working hybrid schedules increased three points.

While most of the big office pushes are coming from some of the largest employers in the nation, the majority of companies in the United States aren't requiring full-time office work, said Brian Elliott [publisher of the Flex Index, which tracks flexible policies, and CEO]. And about half of U.S. workers are employed by smaller companies, he added. Some companies are capitalizing on the mandates, using flexible policies as a way to poach talent from their competitors, he said....

Some employers are using office mandates to purposely shed workers. An August report from the Federal Reserve Bank shows that "multiple districts reported reducing headcounts through attrition — encouraged, at times, by return-to-office policies and facilitated, at times, by greater automation, including new AI tools." Still, with fewer job openings in the market, some employees will have to comply with office mandates.
Announcing their return-to-office mandates, employers gave the following reasons:

• "In-person collaboration is absolutely vital to building and strengthening our culture and driving the success of our business. Being together helps us innovate, solve problems, share ideas, create, challenge one another, and build the relationships that will make this company great."
  
  -- Paramount CEO David Ellison (in a memo to staff)

• "It has become increasingly clear that we are better when we are together. As we have all experienced, in-person work and collaboration spark innovation, promote creativity, and build stronger connections."
  
  -- Adam Miller, NBCUniversal chief operating officer (in a memo to staff)

Last week Steam and other major storefronts crashed, reports the Guardian, including Nintendo's eShop, PlayStation Store and Microsoft Store. They were all "unable to cope with the demand for Hollow Knight: Silksong, the long-awaited sequel to the critically acclaimed 2017 indie hit Hollow Knight." (which had sold 15 million copies): SilkSong's release triggered widespread outages, with thousands of users reporting issues trying to buy the game in the first few hours of its release. Many were unable to complete purchases, with error messages persisting for almost three hours after the launch... Despite the technical hiccups, within 30 minutes of going live Steam reported more than 100,000 active players, suggesting many had managed to secure their copies.
Aftermath says the "bug-tastic" phenomenon displaced everything except Counter-Strike 2 and Dota 2 on Steam's list of most-played games. The Guardian notes that "At least seven other new games have delayed their launch in the past two weeks to avoid a clash..."

"People have been spamming the chat and the comments of every single game showcase or news event with the words 'Where's Silksong?' for years," writes the Guardian's video games editor: I've never seen another indie game achieve this level of notoriety before it was even released... As VGC points out, Atari released a similar game on the same day as Silksong (Adventure of Samsara) and it had only 12 concurrent players on Steam.
They add that "the hype is justified". Eurogame called Silksong "beautiful, thrilling and cruel." PC Game said Silksong "glows with a level of precision and imagination that's hard to find anywhere else" and "will beat you, burn you, rub your face in the dirt, and then dazzle you with another piece of a haunted clockwork world."

But at least some of the demand also came from the game's low price of $20 in the U.S., suggests Slashdot reader UnknowingFool (with variable regional pricing). "At 5.2M wishes, it was the most wish listed game on Steam. In Brazil, the local price was 74.95 Brazil Real or 13.94 USD." In the age of $70+ AAA games with additional costs, not everyone celebrated the consumer friendly price. Some independent game developers have expressed concern that their games may not sell as well compared to Silksong and cannot afford to charge less.
From ScreenRant: Hollow Knight: Silksong's unbelievably low price point of just $19.99 is exceptionally good value for the consumer. It is an incredibly lengthy game that is only marginally more expensive than its predecessor... it is proving to be a source of controversy for other indie developers who believe it will distort players' expectations.