kb5063878

  1. Windows 11 KB5063878: SSDs Vanish Under Heavy Writes — What to Know

    Microsoft’s August cumulative for Windows 11 (KB5063878, OS Build 26100.4946) has been tied by multiple independent community tests and tech outlets to a serious storage regression: under sustained, large sequential writes some SSDs can stop responding, disappear from Windows, and — in a...
  2. Windows 11 KB5063878: Storage Regression and 0x80240069 WSUS Issue (Aug 2025)

    Microsoft’s August cumulative for Windows 11 (KB5063878, OS Build 26100.4946) shipped with security fixes — and within days the patch was linked to two very different reliability problems: an enterprise deployment failure that produced WSUS/SCCM install errors, and a separate cluster of...
  3. Windows 11 KB5063878 Storage Regression: NVMe SSDs Lose Access on Large Writes

    A serious storage regression tied to Microsoft’s August cumulative update for Windows 11 — KB5063878 (OS Build 26100.4946) — has surfaced in the wild: users and independent testers report that sustained, large file writes can cause some NVMe SSDs to stop responding, disappear from Windows, and...
  4. Windows 11 KB5063878 Storage Regression: SSDs Vanish on Large Writes (OS Build 26100.4946)

    A mid‑August cumulative update for Windows 11 — KB5063878 (OS Build 26100.4946), released on August 12, 2025 — is being linked by multiple independent community tests and tech outlets to a storage regression that can render some SSDs inaccessible after sustained, large sequential writes, with...
  5. Windows 11 KB5063878 Storage Regression Affects Phison DRAM-less NVMe SSDs

    Microsoft’s August cumulative for Windows 11 (KB5063878, OS Build 26100.4946) has been tied in independent community testing and aggregation threads to a serious storage regression that can render certain NVMe SSDs inaccessible during large, sustained write operations — and administrators also...
  6. Windows 11 KB5063878 Storage Fault: Drives Vanish Under Heavy Writes

    Microsoft’s August cumulative for Windows 11 — KB5063878 (OS Build 26100.4946) — has been linked by independent testers and enthusiast communities to a reproducible and severe storage fault: under sustained large sequential writes (reports center around the 50 GB range), certain NVMe SSDs—and a...
  7. Windows 11 Aug 2025 KB5063878: Install Failures & SSD Disappear Risks

    Microsoft’s August Windows 11 patch cycle has produced two very different but equally alarming headlines this week: an emergency mitigation for enterprise update delivery failures, and community reports that the same cumulative update may be triggering storage devices to become unreadable or...
  8. Windows 11 24H2 KB5063878 Causes NVMe SSDs to Vanish Under Heavy Writes

    Microsoft's August cumulative update for Windows 11 (KB5063878, OS Build 26100.4946) has been linked in community reports to NVMe SSDs becoming inaccessible after sustained, heavy file writes — an issue that has reopened concerns about storage stability in the 24H2 branch and forced a cautious...
  9. KB5063878 for Windows 11 24H2: WSUS install 0x80240069 & drives disappearing risk

    Microsoft’s August cumulative for Windows 11 (KB5063878) promised performance and security fixes, but within days it became the focal point of two separate reliability incidents: an enterprise deployment failure that blocked WSUS/SCCM installs and, more alarmingly, early community reports that...
  10. KB5063878 Windows 11 24H2 Storage Issues: Drives Disappear, Data Risk Reemerges

    Microsoft's August cumulative for Windows 11 version 24H2 (KB5063878, OS Build 26100.4946) has sparked a new round of alarm in the storage community: multiple reports say the patch is associated with drives disappearing, SMART information becoming unreadable, and — in at least some cases...
  11. KB5063878 on Windows 11 24H2: WSUS 0x80240069, WUSA Errors, CertEnroll Noise

    Microsoft has confirmed three distinct issues tied to the August 12, 2025 cumulative security update for Windows 11 version 24H2 (KB5063878), affecting enterprise update channels and producing noisy, though largely nonfunctional, error logs on some devices; Microsoft has issued rollbacks...
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    Windows 11 Keyboard, Bluetooth and Wi-Fi stopped working

    Went to use my laptop today and keyboard, Bluetooth and wifi were all broken. Tried a few things including a number of restarts but nothing worked. Noticed kb5063878 had been installed a few days ago, uninstalled it and everything started working again. Decided not to leave it switched on...
  13. Windows 11 24H2 KB5063878 0x80240069: WSUS/SCCM Failures and Mitigations

    Microsoft pushed a targeted re-release and mitigation for the August 2025 Windows 11 24H2 cumulative update (KB5063878) after enterprise customers reported widespread WSUS/SCCM delivery failures that surfaced as error code 0x80240069 — Microsoft acknowledged the problem and rolled a containment...
  14. Windows 11 KB5063878 0x80240069: KIR Mitigation for WSUS/SCCM

    Microsoft has acknowledged an emergency problem with the August 12, 2025 cumulative update for Windows 11 (KB5063878), after enterprise administrators reported widespread installation failures when the package is delivered through Windows Server Update Services (WSUS) and System Center...
  15. KB5063878 Install Fails on Windows 11 WSUS/SCCM: KIR Mitigation Guide

    Microsoft has confirmed that the August cumulative update for Windows 11 version 24H2 (KB5063878, OS Build 26100.4946) is failing to install on some enterprise-managed endpoints delivered via WSUS and SCCM, and Redmond has published a Known Issue Rollback (KIR) policy that administrators can...
  16. Windows 11 KB5063878 WSUS/SCCM Failure: 0x80240069 Fix Guide

    Microsoft has confirmed that the August 12, 2025 cumulative update for Windows 11, KB5063878 (OS Build 26100.4946), can fail to install on enterprise endpoints when delivered via Windows Server Update Services (WSUS) or System Center Configuration Manager (SCCM/MECM), producing the error code...
  17. Event ID 57 CertEnroll: Cosmetic Pluton Logging, No Certificate Impact

    Microsoft’s latest advisory to “ignore” a worrying Event Viewer error is the most recent entry in a string of update-era hiccups that have left administrators juggling noisy logs, SIEM rules, and the trust deficit that follows vendor-issued cosmetic triage. Microsoft says the...
  18. Windows 11 Aug KB5063878 Fails on WSUS/SCCM: KIR and Quick Workarounds

    Microsoft’s August cumulative update for Windows 11 (KB5063878) is failing to install on a subset of systems—most notably enterprise devices serviced through WSUS and ConfigMgr—and administrators are being given a short list of containment options that trade speed for scope and safety. view The...
  19. Windows 11 KB5063878 0x80240069: WSUS/SCCM Fails and KIR Rollback

    Microsoft has confirmed that the August 12, 2025 cumulative update for Windows 11 version 24H2 (KB5063878, OS Build 26100.4946) is failing to install on enterprise-managed devices when delivered via WSUS and SCCM, producing the Windows Update error code 0x80240069; Redmond is rolling a temporary...
  20. Windows 11 KB5063878 0x80240069: WSUS/SCCM Failures and Quick Mitigations

    Microsoft has confirmed that the Windows 11 August 2025 cumulative update (KB5063878) is causing installation failures in certain enterprise scenarios and has pushed an emergency mitigation while engineers work on a permanent fix. The issue surfaces as error code 0x80240069 when updates are...