patch tuesday

A routine January Patch Tuesday update left a significant slice of Windows users temporarily unable to rely on core productivity workflows after the January 13, 2026 cumulative update (KB5074109) introduced regressions that broke parts of classic Outlook and disrupted remote access for some...

Microsoft's first cumulative Windows 11 update of 2026 — delivered as KB5074109 on January 13 — has left a broad trail of disruption: critical security fixes were installed, but several high-impact regressions followed, forcing Microsoft into rapid damage control with out‑of‑band patches and...

Microsoft’s first major Windows 11 update of the year has introduced a string of stability and compatibility problems that went from annoying to blocking for many users — and Microsoft has already been forced into emergency out-of-band patches while some serious issues remain under...

Security researchers have discovered a deceptively simple but dangerous exploit that could turn a single click on a legitimate Microsoft Copilot link into a live data‑exfiltration pipeline — a vulnerability the research community has labeled “Reprompt,” and one that Microsoft moved to mitigate...

Microsoft’s January cumulative for Windows 11, KB5074109, was intended to close security holes and fix a handful of nagging bugs — but its rollout on January 13, 2026 quickly produced a string of regressions that have left enterprise admins and everyday users juggling stability vs. security...

Microsoft’s January cumulative updates for Windows 11—delivered as KB5074109 (for 24H2/25H2) and the sibling KB5073455 for 23H2—introduced important security and reliability fixes but also produced a string of regressions that left some PCs unable to sleep, hibernate or shut down correctly and...

Microsoft moved quickly this month after its January 13 Patch Tuesday roll introduced a set of disruptive regressions in Windows 11 that left some machines restarting instead of powering off, blocked Remote Desktop sign‑ins to Azure Virtual Desktop and Windows 365, and caused certain Outlook...

Microsofft’s January patch cycle for Windows produced an unexpectedly disruptive outcome: updates released on January 13, 2026 introduced at least two distinct regressions that left some Windows 11 systems unable to shut down or hibernate and caused Remote Desktop/Cloud PC sign‑in failures...

Microsoft’s January Patch Tuesday hiccup that left some Windows 11 PCs refusing to power off has laid bare a deeper tension: the company’s aggressive pivot to AI-first features is colliding with the chores of patching, firmware hardening, and the bedrock expectation that a computer will actually...

A routine January Patch Tuesday rollup (KB5074109) accidentally left parts of Microsoft’s classic Outlook experience unstable for a measurable number of users, triggering freezes, lingering OUTLOOK.EXE processes, lost Sent Items and a rapid sequence of follow‑up fixes and mitigations from...

Millions of Windows gamers woke up to worse frame rates and unexplained stutters after January’s cumulative, and the fastest way back to smooth play is methodical: confirm the cause, update or reinstall the GPU driver cleanly, and only use Windows rollback as a last‑resort temporary step while...

Microsoft moved quickly after January Patch Tuesday to roll out emergency fixes for two disruptive regressions that began appearing on January 13, 2026 — an out‑of‑band repair that restores proper shutdown/hibernate behavior on systems with System Guard Secure Launch enabled and a companion...

Microsoft has confirmed that its January 2026 Patch Tuesday updates for Windows 11 introduced multiple regressions and has already shipped targeted fixes to address the most disruptive problems, but mixed reports and unacknowledged reports mean administrators and power users must act carefully...

Microsoft issued an unscheduled, out‑of‑band Windows update after January’s Patch Tuesday created two disruptive regressions—broken Remote Desktop authentication across multiple client and server lines, and a Secure Launch–linked shutdown/hibernate regression on Windows 11 23H2—forcing a rapid...

Microsoft's January Patch Tuesday turned into an early crisis for Windows 11: a cumulative update shipped on January 13, 2026 (KB5074109 / KB5073455 family) introduced a cluster of regressions that forced Microsoft to push emergency out‑of‑band (OOB) updates four days later, while a separate but...

Microsoft’s January Patch Tuesday produced a narrow but painful regression: after installing the January 13, 2026 cumulative update (KB5073455) some Windows 11 systems configured with System Guard Secure Launch refused to power off or enter hibernation and instead restarted — a problem Microsoft...

A routine Patch Tuesday release on January 13, 2026 has left a significant portion of classic Outlook users scrambling: the Windows 11 cumulative update KB5074109 and a separate Outlook Current Channel build have each introduced regressions that render parts of the traditional Outlook experience...

Microsoft’s January update cycle took an unexpected detour this week when a Patch Tuesday release introduced a narrowly scoped but disruptive regression that left some Windows 11 systems unable to shut down or enter hibernation, forcing Microsoft to ship emergency out‑of‑band (OOB) updates on...

Microsoft’s January Patch Tuesday produced more than the usual mix of security fixes: for a narrow but important slice of Windows 11 deployments the update briefly prevented systems from shutting down or entering hibernation, triggered remote-desktop authentication failures for some clients, and...

Microsoft's January update cycle for Windows 11 hit a rough patch this month: a Patch Tuesday cumulative update released on January 13, 2026 introduced a configuration‑dependent regression that left some PCs restarting when users chose Shut down or attempted Hibernate, and it also contributed to...