Microsoft is investigating a new issue preventing third-party applications from launching Microsoft Office applications or opening documents on up-to-date Windows systems. [...]

Microsoft confirmed that it's working on a security patch for a Defender zero-day vulnerability named "RoguePlanet," disclosed one week ago. [...]

Microsoft has created an open-source fork of Windows Terminal called "Intelligent Terminal," and it allows you to use AI directly inside Terminal without interfering with the regular session. [...]

On Wednesday, Microsoft started rolling out security patches for two Defender vulnerabilities that have been exploited in zero-day attacks. [...]

Microsoft has shared mitigations for YellowKey, a recently disclosed Windows BitLocker zero-day vulnerability that grants access to protected drives. [...]

A threat actor targeting Microsoft 365 and Azure production environments is stealing data in attacks that abuse legitimate applications and administration features. [...]

Microsoft plans to raise the quality bar of Windows 11 drivers, as drivers "sit at the heart of every Windows experience" and connect the OS to the "silicon, components, and peripherals." [...]

Microsoft has confirmed user reports that the Teams team collaboration app is displaying non-dismissible location prompts on some macOS systems. [...]

Microsoft says customers in restricted network environments may encounter Windows Update failures after installing the January 2026 optional non-security preview updates. [...]

Microsoft has finally brought back the resizable taskbar and Start menu to Windows 11 in the latest preview version rolling out to Insiders in the Experimental channel. [...]

Microsoft has confirmed that the May 2026 Windows 11 security update (KB5089549) fails to install on some systems and triggers 0x800f0922 errors. [...]

A cybersecurity researcher has released a proof-of-concept exploit for a Windows privilege escalation zero-day dubbed "MiniPlasma" that lets attackers gain SYSTEM privileges on fully patched Windows systems.  [...]

​During the second day of Pwn2Own Berlin 2026, competitors collected $385,750 in cash awards after exploiting 15 unique zero-day vulnerabilities in multiple products, including Windows 11, Microsoft Exchange, and Red Hat Enterprise Linux for Workstations. [...]

Microsoft says it's rolling out a revamped Windows Insider Program experience as part of the broader plans to address performance and reliability concerns affecting Windows 11. [...]

Microsoft is rolling out Windows Update improvements that give users more control over how updates are installed while reducing disruption from frequent or poorly timed restarts. [...]

Microsoft will roll out passkey support for phishing-resistant passwordless authentication to Microsoft Entra‑protected resources from Windows devices starting late April. [...]

Microsoft says IT administrators can now uninstall the AI-powered Copilot digital assistant from enterprise devices using a new policy setting, which has become broadly available after the April 2026 Patch Tuesday. [...]

Microsoft confirmed that a recent Microsoft Edge browser update introduced a bug that prevents Windows users from joining Teams meetings. [...]

CISA has ordered U.S. federal agencies to patch a Microsoft Defender privilege escalation flaw (dubbed BlueHammer) that has been exploited in zero-day attacks. [...]

Microsoft is working to address an ongoing Exchange Online outage that is preventing customers from accessing their mailboxes and calendars. [...]