Microsoft and SSD vendors have opened an investigation after multiple independent testers and users reported that the August 12, 2025 Windows 11 cumulative update (KB5063878, OS Build 26100.4946) can cause some NVMe and SATA drives to stop responding, vanish from the operating system, and — in a...
backup
cumulative update
data corruption
disk management
drive-disappearance
drive-vanish
enterprise it
event viewer
firmware
heavy-writes
hmb
imaging
kb5062660
kb5063878
known issue rollback
nvme
os build 26100.4946
phison
sata
sccm
sequential-writes
solid state drive
ssd
ssd firmware
update management
vendor support
windows 11
wsus
Microsoft has issued an emergency out‑of‑band update to repair a high‑impact regression introduced by the August Patch Tuesday rollup that left Windows’ built‑in reset and recovery tools unable to complete on many client devices. id‑August Microsoft shipped its regular Patch Tuesday cumulative...
22h2
23h2
cumulative update
intune
it administration
kb5066188
kb5066189
ltsc
microsoft update catalog
out-of-band update
patch
release health
remotewipe
reset pc
servicing stack update
windows
windows 10
windows 11
winre
wsus
Microsoft's August Patch Tuesday set off a chain reaction: the security update that fixed scores of vulnerabilities also broke Windows' own recovery tools for many users, and Microsoft was forced to ship out-of-band (OOB) emergency patches to undo the damage. The recovery failure — which could...
Microsoft released an out‑of‑band update on August 19, 2025 — KB5066189 for Windows 11 (OS Builds 22621.5771 and 22631.5771) — to fix a high‑impact regression introduced earlier in the August security rollup that broke Reset and cloud recovery flows, while reiterating a separate, platform‑level...
Microsoft released an out‑of‑band update on August 19, 2025—KB5066189—for Windows 11 devices on the 22621 and 22631 build families (OS Builds 22621.5771 and 22631.5771). The package is an optional, non‑security rollup that patches a regression introduced by the August 2025 monthly updates...
Microsoft released an out‑of‑band (OOB) non‑security update on August 19, 2025 — KB5066189 for Windows 11 (OS Builds 22621.5771 and 22631.5771) — to repair a regression introduced by August’s cumulative updates that can block device reset and recovery operations, and to deliver a servicing stack...
Microsoft’s August 2025 Patch Tuesday has left a wake of confusion and real operational pain for many Windows users after Redmond acknowledged that its security rollup unintentionally disabled critical recovery paths on a swath of older client builds — a regression that can prevent “Reset this...
august 2025
backup
cloud recovery
enterprise it
esu
kb5063709
kb5063875
kb5063878
offline recovery
patch
reset pc
sccm
windows
windows 10 22h2
windows 11
windows 11 22h2
windows 11 24h2
windows recovery
wsus
Microsoft’s latest Windows 11 cumulative update has been linked by multiple community tests and vendor advisories to a storage regression that, under specific conditions, can make some NVMe SSDs disappear during large sustained writes — risking data corruption or loss — and has reignited a...
Phison has confirmed it is investigating reports that Microsoft’s August cumulative for Windows 11 (24H2) — distributed as KB5063878 — is associated with a storage regression that can make certain NVMe SSDs stop responding or disappear from Windows during large, sustained write operations...
data loss
dram-less ssd
firmware
hmb
host memory buffer
kb5063878
known issue rollback
nvme ssd
os upgrade
phison
sccm
storage issues
storage regression
windows 11
windows update
wsus
Microsoft’s August Patch Tuesday has introduced a serious operational regression: on several supported Windows branches the built‑in Reset and recovery workflows can fail outright after installing the August 12, 2025 security updates, leaving users unable to complete “Reset this PC,” the new...
august 2025
backup
cloud recovery
enterprise it
intune
it administration
kb5063709
kb5063875
kb5063878
known issue rollback
msp
out-of-band patch
patch
recovery
remotewipe
reset pc
windows 10
windows 11
windows update
wsus
Microsoft’s August cumulative (KB5063878) is making some SSDs and HDDs vanish mid‑write, and a patchwork of community testing, vendor responses and cautious guidance now makes a compelling case for pausing non‑urgent Windows updates and treating large, continuous file transfers as high‑risk...
backup
data recovery
drive-disappearance
firmware
hdd data loss
heavy i/o
kb5063878
nvme ssd
patch management
pause updates
phison controllers
sccm
ssd
ssd data loss
storage reliability
windows 11
wsus
Microsoft’s August cumulative for Windows 11 (KB5063878, OS Build 26100.4946) has been linked by independent testers and several tech outlets to a reproducible storage regression that can render some NVMe SSDs temporarily or permanently inaccessible during sustained large writes, prompting...
Microsoft has confirmed that the August Patch Tuesday cumulative updates introduced a regression that can break Windows’ built‑in reset and recovery flows on a wide range of supported client releases, and an out‑of‑band (OOB) emergency patch is being prepared to fix the problem before the next...
cloud recovery
enterprise it
intune
kb5063709
kb5063875
ltsc
microsoft update catalog
oob update
out-of-band patch
patch
remotewipe csp
reset pc
windows
windows 10 22h2
windows 11
windows 11 22h2
windows recovery
winre
wsus
Microsoft has quietly confirmed that a routine August security roll‑out has broken core recovery features on multiple Windows builds, and an out‑of‑band emergency update is imminent to fix failed Reset and Recovery operations for affected platforms. Background
Microsoft shipped its August 12...
data loss
enterprise it
extended security updates
kb5063709
kb5063875
kb5063878
kir
known issue rollback
nvme
out-of-band patch
patch
phison
recovery
reset pc
sccm
ssd failure
storage instability
windows 10
windows 11
wsus
Microsoft has quietly confirmed that the August 2025 Patch Tuesday rollup left a serious recovery hole: on several still‑supported Windows branches the built‑in Reset this PC and cloud recovery options can fail to complete, leaving devices unable to factory‑reset or perform dealer/IT wipe...
autopilot
bitlocker
cloud recovery
intune
kb5063709
kb5063875
kb5063878
offline reimage
remotewipe
reset pc
sccm
update health
windows 10 22h2
windows 11
windows 11 22h2
windows 11 24h2
winre
wsus
Microsoft’s latest cumulative for Windows 11 24H2 has been tied to a small but serious cluster of storage failures that can make NVMe SSDs disappear during heavy writes and, in a handful of cases, leave data unreadable — a scare that underscores why updating and backup discipline still matters...
The August cumulative for Windows 11 — identified as KB5063878 (OS Build 26100.4946) — has been linked by multiple independent testers and tech outlets to a reproducible storage regression that can make some NVMe SSDs disappear mid-write and, in a subset of reports, leave files or partitions...
Last week’s August Patch Tuesday delivered the usual mix of security fixes and servicing updates — and with it a familiar enterprise headache: a cluster of delivery- and recovery-related regressions that have already prompted Microsoft to issue targeted mitigations and begin emergency servicing...
Microsoft’s August cumulative for Windows 11 24H2 (KB5063878) has been linked by independent testers and enthusiast communities to a reproducible storage regression in which certain NVMe SSDs can suddenly stop responding during sustained large writes, sometimes vanishing from Device Manager and...
The latest Windows cumulative update has landed with a thud: a growing number of users report that Windows 11 version 24H2’s August security rollup (KB5063878, OS Build 26100.4946) can make drives disappear under heavy I/O, and the fallout has reignited debates about privacy, platform stability...