patch tuesday

Microsoft’s Patch Tuesday started 2026 with a jolt: a January 13 cumulative rollup intended to close security holes instead produced a cascade of regressions that forced Microsoft into an unusually busy sequence of emergency, out‑of‑band (OOB) updates — and left administrators asking whether...

Microsoft has pushed KB5074105 to the Windows Insider Release Preview channel, delivering builds 26100.7701 and 26200.7701 with a mix of targeted bug fixes, accessibility and creator-focused upgrades, and a handful of system‑level security and deployment changes that administrators and...

Microsoft was forced into a rare series of out‑of‑band emergency patches after January’s security rollup triggered system crashes, boot failures, and application regressions that left both home users and enterprises scrambling for fixes and workarounds. Background What happened, in plain terms...

Microsoft’s pledge to make 2026 the year Windows 11 stops being a trial-by-fire moment is welcome — but after January’s Patch Tuesday meltdown, words won’t be enough. The operating system needs stable, well‑tested updates that restore confidence for everyday users and IT pros alike. February’s...

Microsoft’s ecosystem found itself in unusually turbulent territory this week: the Windows Insider program was reshuffled, Patch Tuesday went sideways and generated multiple emergency fixes, Microsoft unveiled a new in‑house AI accelerator, major AI platforms doubled down on “apps” inside...

Microsoft’s public concession that Windows 11 has slid past “annoying” into a systemic quality problem is the most consequential signal yet: engineers are being redirected into tactical “swarming” teams to triage a wave of regressions that culminated in emergency out‑of‑band patches and, for a...

Microsoft released its January cumulative for Windows 11 (KB5074109) on January 13, 2026 — and within days a series of serious regressions began surfacing, from brief black screens on some Nvidia-equipped machines to full startup failures that print UNMOUNTABLE_BOOT_VOLUME (Stop Code 0xED) and...

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...