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Kb5078127

All articles tagged with #kb5078127

technology1 month ago•7 min saved

Windows 11 January 2026 Update Triggers Boot Failures on Some PCs, Prompting Emergency Fix

Microsoft says a limited number of devices on Windows 11 24H2/25H2 may fail to boot after installing the January 2026 security update KB5074109, showing a black screen with the UNMOUNTABLE_BOOT_VOLUME stop code. Recovery may be needed via Windows Recovery or a clean install using an ISO; the issue appears limited to certain hardware. An emergency out-of-band update KB5078127 has been released to fix related problems (e.g., Outlook Classic and other app issues), but some glitches remain. If you’re not experiencing issues, no action is required.

via Windows Latest|

#boot-failure #kb5074109 #kb5078127

technology1 month ago•47 min saved

Microsoft pushes a second Windows 11 emergency update to fix Patch Tuesday chaos

Microsoft released a second emergency out-of-band update for Windows 11 (KB5078127) to fix a bug that left Outlook and cloud-based apps like OneDrive and Dropbox unusable after January Patch Tuesday; the update, targeting 24H2 and 25H2, includes fixes for unresponsiveness when opening/saving to cloud storage and follows an earlier OOB patch that resolved remote desktop and hibernation issues but briefly broke app compatibility. The rollout spans multiple Windows editions, with guidance to check the Windows release health dashboard for current status.

via Windows Central|

#kb5078127 #microsoft #out-of-band