Microsoft has acknowledged an active investigation after multiple community researchers, test benches and SSD vendors reported that the Windows 11 August cumulative (commonly tracked as KB5063878, OS Build 26100.4946) can cause certain SSDs to vanish from the operating system during sustained...
Microsoft and SSD vendors are scrambling after multiple independent testers and users reported that a recent Windows 11 cumulative update can make NVMe SSDs vanish from the operating system during sustained large writes — a failure mode that in some cases has left files corrupted or drives...
backup
enterprise it
firmware
firmware advisory
heavy-writes
hmb
host memory buffer
kb5063878
large i/o
microsoft
nvmessd
phison
recovery regression
ssd data loss
storage regression
vendor management
windows 11
windows update
Microsoft has quietly acknowledged a serious disruption in core Windows recovery flows and pushed emergency, out‑of‑band (OOB) updates after the August 2025 Patch Tuesday rollups left some systems unable to complete “Reset this PC,” cloud re‑image operations, and certain remote wipe jobs — and...
3-2-1 backup
backup
cloud reimage
data loss
firmware
kb5066187
kb5066188
kb5066189
microsoft update catalog
nvmessd
out-of-band update
patch tuesday 2025
phison
remotewipe
reset pc
ssd failure
windows 10
windows 11
windows recovery
winre
Dell’s 14‑inch Inspiron 2‑in‑1 is being advertised in reseller channels as a surprisingly well‑spec’d convertible — a configuration that pairs the AMD Ryzen 5 8640HS with unusually large memory and storage (32 GB DDR5 and a 2 TB NVMe SSD), an FHD+ touchscreen with Dolby Vision, AI‑enhanced...
Microsoft’s August patch cycle went from routine to risky in under a week: an August 12 cumulative rollup introduced a servicing regression that could cause the built‑in Reset and cloud recovery flows to fail, and community reports of SSDs becoming inaccessible under heavy write workloads added...
Microsoft’s August cumulative for Windows 11 (KB5063878, OS Build 26100.4946) has been linked by multiple community tests and specialist outlets to a narrow but severe storage regression in which some NVMe SSDs can suddenly become unresponsive or disappear during sustained, large writes — a...
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
nvmessd
os upgrade
phison
sccm
storage issues
storage regression
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
nvmessd
patch management
pause updates
phison controllers
sccm
ssdssd data loss
storage reliability
windows 11
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...
24h2
26100.4946
august 2025
backup
data integrity
data recovery
dism
dram-less ssd
enterprise deployment
firmware
hardware compatibility
heavy i/o workloads
heavy-writes
host memory buffer
it admin
kb5063878
known issue rollback
nvmenvmessd
phison controllers
release health
rollback
sccm
ssdssd disappearance
ssd firmware
storage regression
support guidance
vendor diagnostics
windows 11
windows 11 24h2
windows update
wsus
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...
The Windows update ecosystem once again landed in the headlines this month after community researchers and multiple publications raised alarms about KB5063878 — the August 12, 2025 cumulative update for Windows 11 24H2 — and claims that a sustained-write workload can make some NVMe SSDs...
24h2
august 2025
backup
data loss
data recovery
dram-less
drive-disappearance
enterprise it
firmware
heavy-writes
hmb
host memory buffer
it admin
kb5063878
known issues
nvmenvmessd
os build 26100.4946
phison controllers
sandisk
secure storage
ssd disappearance
ssd firmware
storage regression
uefi
wd black
windows 11
windows 11 24h2
wsus-sccm
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...
backup
data corruption
data loss
device manager
disk management
dram-less
dram-less ssd
firmware
heavy-writes
hmb
host memory buffer
it administration
kb5063878
known issues
nvmenvmessd
phison
phison controllers
release health
sccm
ssdssd firmware
storage regression
update management
vendor-update
windows 11
windows 11 24h2
wsus
Microsoft’s August cumulative for Windows 11 (KB5063878) is at the center of a growing, technically consistent set of community reports: after installing the update, some users say NVMe SSDs can “vanish” during large, sustained file writes — sometimes leaving files corrupted, SMART/controller...
backup
data corruption
disk management
enterprise it
event viewer
file transfer
firmware
heavy-writes
it admin
kb5063878
microsoft support
nvmenvmessd
phison controllers
ssd
storage regression
telemetry
vendor support
windows 11
Microsoft’s Windows 11 24H2 rollout has already spawned two separate storage headaches: an earlier compatibility surge that produced looping Blue Screens of Death (BSODs) on certain Western Digital and SanDisk NVMe drives, and a later August 12, 2025 cumulative patch (KB5063878, OS Build...
bsod
data corruption
drive-disappearance
hmb
host memory buffer
kb5063878
nvmenvmessd
os build 26100.4946
phison
registry-hmb
sandisk
ssd firmware
ssd-regression
storage stack
storport
western digital
windows 11
windows 11 24h2
A Windows 11 cumulative update released on August 12, 2025 — KB5063878 (OS Build 26100.4946) — has been linked by multiple community tests and specialist outlets to a potentially serious storage regression that can make some NVMe SSDs disappear from the operating system during large, sustained...
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...
24h2
backup
backup and recovery
data corruption
data integrity
data security
disk management
dram-less ssd
drive visibility
enterprise deployment
event viewer
firmware
heavy-writes
hmb
independent reporting
it administration
kb5063878
known issue rollback
microsoft support
monitoring
nvmenvmessd
os build 26100.4946
phison
phison controllers
release health
smart data
ssdssd firmware
ssd-regression
storage regression
troubleshooting
vendor advisories
vendor management
windows 11
windows update
wsus-sccm
Microsoft’s staggered Windows 11 24H2 rollout has tripped a serious compatibility landmine: scattered but reproducible reports show that one recent cumulative update can cause some NVMe SSDs to become unresponsive or vanish during sustained large writes, and earlier instances of the 24H2 feature...
Microsoft's File Explorer is getting a practical, productivity-focused facelift that pushes more commands and AI into the surface users already interact with — hover-activated quick-action buttons for Home items, an experimental AI Actions menu and deeper Copilot integration — even as the app...
ai actions
ai in windows
cloud integration
context menu
copilot
enterprise it
file explorer
file management
firmware
hover actions
insider preview
nvmessd
os modernization
productivity tools
release cadence
storage optimization
tabbed browsing
ui stability
windows update
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...
24h2
backup
data corruption
dram-less
enterprise it
firmware
hmb
it administration
kb5063878
known issue rollback
nvmessd
phison
release notes
sccm
servicing
ssd
storage regression
windows 11
windows servicing
wsus