Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.

This comes just hours after reports that another emergency update has been issued by Microsoft to affect other problems ...

微软当时无法确认问题是否由 Windows 更新引起，不过在后续调查后，微软已承认 1 月累积更新导致少量电脑无法启动。微软明确表示，该故障目前仅限商用计算机领域，普通家庭用户大多无需担心。 在后续调查中，微软指出受影响的设备大多未能成功安装 2025 年 12 月的安全更新，并执行了版本回滚操作，导致系统底层的服务元数据、引导配置或驱动程序状态出现不一致。

2026年1月，微软发布的累积更新KB5074109引发了部分Windows 11商用计算机用户的黑屏死机（BSOD）和无法启动问题。这一问题的出现，不仅让用户感到困惑，也引发了关于Windows更新质量和系统稳定性的广泛讨论。根据科技媒体WindowsLatest的报道，微软已对此进行了确认，并表示该故障仅限于商用PC用户，普通家庭用户并不受影响。

在科技世界中，更新通常意味着更好的性能和安全性，但微软最近的一个更新却让部分Windows 11商用用户遭遇了令人沮丧的黑屏死机（BSOD）问题。根据IT之家于1月29日的报道，微软已确认2026年1月的累积更新KB5074109导致部分商用PC无法启动。这个消息无疑让广大用户感到不安，尤其是在数字化转型日益加速的今天，稳定性已成为商业环境中不可或缺的一部分。

The post Windows 11 boot issues tied to bad December update appeared first on Android Headlines.

Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors ...

Windows 11 January 2026 updates may cause boot failures on some PCs. Microsoft is investigating issues linked to KB5074109.

Microsoft admits Windows 11 issues. With bug fixes, Copilot cutbacks, and gaming fixes, 2026 could be Windows’ last chance to win users back.

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Windows Insiders are getting early access to an upcoming Windows 11 feature that is intended to improve system reliability by scanning system memory following a system crash. The optional feature is ...

Per title; like many others recent updates have seen my PC getting multiple BSOD's per day, where I would be lucky to see one more frequently than every six months before this. After searching online ...