patch tuesday

Outlook crashing on Windows 11 after January’s Patch Tuesday left inboxes frozen, mailboxes mismatched, and IT teams scrambling — and Microsoft’s emergency out-of-band update finally appears to have stopped the worst of it. The fix targets a flaw introduced by the January 13, 2026 security...

Microsoft's January Patch Tuesday created more work for IT teams than it solved: within days of the January 13, 2026 cumulative update, users and administrators began reporting that Outlook — particularly classic Win32 profiles using local PST files stored in cloud‑synced folders — would hang...

Microsoft’s January Patch Tuesday for Windows 11 has spiraled from an awkward rollout into a painful disruption for a subset of PCs: the cumulative update KB5074109 is now being linked to full boot failures that surface as the UNMOUNTABLE_BOOT_VOLUME stop code, leaving some machines unable to...

Microsoft has confirmed that its January cumulative update for Windows 11 is linked to a small but serious class of failures that can leave some physical PCs unbootable—often with the UNMOUNTABLE_BOOT_VOLUME stop code—forcing recovery via WinRE or, in worst cases, a clean reinstall. Background...

Microsoft pushed an emergency out‑of‑band update late last week to repair a regression introduced by its January security rollup that left Outlook and other programs unable to open or save files stored in cloud‑backed folders such as OneDrive and Dropbox. The fix — delivered as KB5078127 for...

Microsoft’s January Windows 11 cumulative security update has produced a worst‑case outcome for a small but painful subset of PCs: after installing KB5074109 (the January 13, 2026 LCU/SSU bundle), some physical machines fail to complete startup, showing the UNMOUNTABLE_BOOT_VOLUME stop code and...

Microsoft’s mid‑January cumulative update for Windows 11 triggered a chain of regressions that left the classic Win32 Outlook client hanging, losing sent items, and in some cases redownloading messages — and Microsoft responded with a rapid sequence of out‑of‑band emergency updates that restored...

Security researchers have shown that a single, seemingly legitimate Copilot link could be turned into a stealthy data‑exfiltration pipeline — a one‑click attack dubbed Reprompt — and Microsoft moved to mitigate the specific vector during the January 2026 Patch Tuesday updates. ) Background...

Microsoft released an out‑of‑band cumulative update for Windows 11, version 23H2—KB5078132 (OS Build 22631.6495)—on January 24, 2026 to address a set of post‑Patch‑Tuesday regressions and to roll together prior January fixes into a single package for affected systems. The package is explicitly...

Windows 11’s Night light gives you a one-click way to cut blue light, warm your display, and reduce evening eye strain — here’s a practical, forensic guide to turning it on, tuning it, troubleshooting when it’s missing, and choosing safer alternatives when you need color accuracy or more...

Microsoft’s January cumulative update for Windows — shipped as part of Patch Tuesday — aimed to harden the platform against a broad set of vulnerabilities, but for a non‑trivial subset of users it introduced disruptive regressions that broke critical workflows: classic Outlook (Win32) could hang...

Microsoft’s decision to lock its monthly Windows security updates to a single weekday — the now‑familiar “Patch Tuesdayy” — is the product of operational hardening, industry coordination, and a set of trade-offs that still reverberate through enterprise IT teams and home users nearly two decades...

Fast Startup is designed to shave seconds off cold boots by saving a partial OS state to disk, but because it deliberately preserves kernel and driver state between shutdowns it can also hide faults, block other operating systems from safely accessing Windows volumes, and interfere with certain...

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...