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Windows KB5121767 OOB update fixes shutdowns on some Dell PCs
Microsoft has released emergency updates to fix a known issue causing some Dell PCs to shut down after installing the July 2026 Windows 11 security updates.
- July 20, 2026
- 06:06 AM
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Microsoft: Some Dell PCs shut down after recent Windows updates
Microsoft is blocking this month's Windows 11 security updates on some Dell devices because they are causing shutdowns and performance issues.
- July 15, 2026
- 04:26 AM
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Webinar: The state of shadow AI in 2026 (and how attackers are taking advantage)
AI adoption has exploded, but every new app, integration and extension introduces new threats and risks.
The latest webinar from Push Security uncovers the scale of Shadow AI in the enterprise, how attackers are taking advantage, and what security teams can do about it.
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Microsoft: Some Windows PCs fail to install latest monthly updates
Microsoft warned customers on Tuesday that they may have issues installing the latest monthly updates on some Windows devices that were upgraded to Windows 11 24H2 or 25H2.
- June 10, 2026
- 07:33 AM
- 2
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Microsoft fixes KB5089549 Windows security update install issues
Microsoft has resolved a known issue causing installation failures and 0x800f0922 errors when deploying the May 2026 Windows 11 security update (KB5089549).
- June 01, 2026
- 06:59 AM
- 0
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Windows 11 KB5089573 update released with performance improvements
Microsoft has released the KB5089573 preview cumulative update for Windows 11 versions 25H2 and 24H2, which comes with 30 changes, including performance and reliability improvements.
- May 27, 2026
- 04:33 AM
- 1
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Microsoft confirms patching issues in restricted Windows networks
Microsoft says customers in restricted network environments may encounter Windows Update failures after installing the January 2026 optional non-security preview updates.
- May 19, 2026
- 07:22 AM
- 1
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Microsoft confirms Windows 11 security update install issues
Microsoft has confirmed that the May 2026 Windows 11 security update (KB5089549) fails to install on some systems and triggers 0x800f0922 errors.
- May 18, 2026
- 04:33 AM
- 3
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April KB5083769 Windows 11 update causes backup software failures
The April 2026 KB5083769 security update breaks third-party backup applications from multiple vendors on systems running Windows 11 24H2 and 25H2.
- April 30, 2026
- 11:23 AM
- 6
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Microsoft now lets admins uninstall Copilot on enterprise devices
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.
- April 24, 2026
- 07:38 AM
- 7
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Microsoft now force upgrades unmanaged Windows 11 24H2 PCs
Starting this week, Microsoft has begun force-upgrading unmanaged devices running Windows 11 24H2 Home and Pro editions to Windows 11 25H2.
- April 03, 2026
- 03:55 AM
- 5
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New KB5085516 emergency update fixes Microsoft account sign-in
Microsoft has released an emergency update to address a major issue that breaks sign-ins with Microsoft accounts across multiple Microsoft apps, including Teams and OneDrive.
- March 23, 2026
- 04:04 AM
- 0
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Microsoft: March Windows updates break Teams, OneDrive sign-ins
Microsoft says the March Windows 11 update breaks sign-ins with Microsoft accounts across multiple Microsoft apps, including Teams and OneDrive.
- March 20, 2026
- 03:33 AM
- 1
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Windows 11 KB5077241 update improves BitLocker, adds Sysmon tool
Microsoft has released the KB5077241 optional cumulative update for Windows 11, which comes with 29 changes, including improvements to BitLocker, a new network speed test tool, and native System Monitor (Sysmon) functionality.
- February 25, 2026
- 02:51 AM
- 0
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Windows 11 KB5077181 & KB5075941 cumulative updates released
Microsoft has released Windows 11 KB5077181 and KB5075941 cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features.
- February 10, 2026
- 01:43 PM
- 0
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Microsoft rolls out new Secure Boot certificates before June expiration
Microsoft has begun rolling out updated Secure Boot certificates through monthly Windows updates to replace the original 2011 certificates that will expire in late June 2026.
- February 10, 2026
- 12:00 PM
- 7
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Windows 11 KB5074105 update fixes boot, sign-in, and activation issues
Microsoft has released the KB5074105 preview cumulative update for Windows 11 systems, which includes 32 changes, including fixes for sign-in, boot, and activation issues.
- January 30, 2026
- 07:02 AM
- 3
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Microsoft: Windows 11 update causes Outlook freezes for POP users
Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze and hang for users with POP email accounts.
- January 16, 2026
- 07:12 AM
- 7
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New Windows updates replace expiring Secure Boot certificates
Microsoft has started rolling out new Secure Boot certificates that will automatically install on eligible Windows 11 24H2 and 25H2 systems.
- January 13, 2026
- 02:57 PM
- 2
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Microsoft: Recent Windows updates break VPN access for WSL users
Microsoft says that recent Windows 11 security updates are causing VPN networking failures for enterprise users running Windows Subsystem for Linux.
- December 15, 2025
- 09:34 AM
- 0
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Microsoft fixes Windows Explorer white flashes in dark mode
Microsoft has fixed a known issue that caused bright white flashes when launching File Explorer in dark mode on Windows 11 systems after installing the KB5070311 optional update.
- December 11, 2025
- 05:09 AM
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