Phison’s latest test summary puts the disputed SSD failures tied to Windows 11 updates into a new, uneasy middle ground: vendors and Microsoft say they cannot reproduce a widespread “bricking” problem, while a small but alarming set of user reports continues to describe drives disappearing and...
Phison says its lab work could not reproduce the Windows 11 SSD corruption reports that circulated after the August cumulative updates — but the episode exposes how fragile modern storage stacks can be when OS updates and controller firmware collide, and why backups, staged rollouts, and vendor...
Phison has confirmed it is investigating reports that a mid‑August Windows 11 cumulative update can trigger SSD instability — drives disappearing from Windows during sustained, heavy writes — and vendors, independent testers and Microsoft are coordinating forensic work while users are warned to...
Phison’s latest public update frames the SSD problem that rocked Windows 11’s August rollout as an industry-wide, workload-dependent storage regression under investigation — not a single-vendor “bricking” event — but the episode exposes sharp risks in modern storage co‑engineering and offers...
A wave of community test results and vendor confirmations this week has put the latest Windows 11 cumulative update under a harsh spotlight: several SSDs can disappear from Windows during sustained, large write operations after installing the August 12, 2025 update (KB5063878), with a...
Microsoft’s Reserved Storage can quietly hold back roughly 7 GB of your system drive, and there are safe, supported ways to turn it off — but doing so trades a small amount of automated update resilience for more usable disk space on tight SSDs. This guide explains what Reserved Storage is, how...
64gb ssd
disk cleanup
disk space
dism
enterprise deployment
enterprise it
external ssd
get-windowsreservedstoragestate
image deployment
imaging
it administration
maintenance
onedrive files on-demand
powershell
registry
reserved storage
set-windowsreservedstoragestate
small drive
ssd
storage
system reserved
update reliability
windows 10
windows 11
Silicon Motion's early reassurance — that “so far, none of our controllers are affected” by the Windows 11 update that has been making some NVMe drives disappear under sustained writes — is an encouraging datapoint, but it is provisional and incomplete: the incident remains an active...
Windows 11’s August cumulative update (KB5063878) has been linked to a reproducible storage regression that can make certain SSDs and HDDs disappear under sustained large writes, and Silicon Motion — according to community‑sourced forum responses — reports none of its controllers have shown the...
Silicon Motion has told at least one forum poster that “none of our controllers are affected” by the Windows 11 storage regression that surfaced after Microsoft’s August 2025 cumulative update — but the larger picture remains unsettled and users should treat that single claim cautiously while...
backup
data corruption
device manager
disk issues
event viewer
firmware
kb5063878
known issues
lcu
microsoft
nvme ssd
phison
silicon motion
ssd
storage controllers
storage regression
telemetry
windows 11
windows update
Microsoft and several SSD vendors are investigating reports that the August 12, 2025 cumulative update for Windows 11 24H2 (KB5063878, OS Build 26100.4946) can trigger a reproducible storage regression where some SSDs vanish from the operating system during sustained, large sequential writes — a...
A wave of reproducible reports and a parallel burst of misinformation have combined to create one of the more consequential Patch Tuesday headaches in recent memory: Microsoft’s August 12, 2025 cumulative for Windows 11 (KB5063878) has been linked to SSDs disappearing under sustained, heavy...
Microsoft’s August Patch Tuesday delivered a surprise that quickly escalated from a support thread to a cross-industry incident: the Windows 11 cumulative update KB5063878 has been linked by multiple users to SSD and HDD failures, data corruption, and drives “vanishing” during heavy write...
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...
Phison has confirmed it is investigating a widespread storage regression tied to Windows 11’s August cumulative update (KB5063878) while simultaneously denouncing and legally challenging a circulated document that falsely claims to be an internal Phison report linking the problem exclusively to...
Microsoft has temporarily paused the roll‑out of recent Windows updates after a cascade of high‑impact problems—including broken recovery tools, WSUS installation failures, and reports of storage devices becoming inaccessible—hit a subset of users and enterprise environments nationwide...
backup
data loss
enterprise it
kb5063878
kir
known issue rollback
out-of-band
patch management
pilot testing
recovery
release health
remotewipe
reset
sccm
security updates
ssd
storage
windows 11 24h2
windows update
wsus
Microsoft and several SSD vendors are investigating reports that the August 12, 2025 cumulative update for Windows 11 (KB5063878, OS Build 26100.4946) can trigger a storage regression that makes some SSDs disappear during sustained, large writes — a failure mode that, in a minority of reports...
backup security
data corruption
data recovery
firmware
heavy-writes
kb5063878
known issue rollback
nvme
os build 26100.4946
phison
phison controllers
raw partition
sata
ssd
storage regression
windows 11
windows update
Microsoft and several SSD vendors are investigating reports that a recent Windows 11 cumulative update can cause some solid-state drives to stop responding or “vanish” from the operating system during sustained, large file writes — a failure mode that can leave files corrupted or, in a minority...
New Windows 11 24H2 cumulative updates released in August have been linked to a worrying, reproducible storage regression that can make some SSDs and a few HDDs vanish from the operating system during heavy, sustained writes — in a number of community tests the failure has led to corrupted or...
backup
data loss
diagnostics
dram-less
enterprise it
firmware
hardware compatibility
heavy-writes
hmb
kb5062660
kb5063878
known issue rollback
nvme
phison
ssd
storage regression
windows 11
windows update risks
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
ssdssd firmware
update management
vendor support
windows 11
wsus
Phison has warned customers that a circulated document purporting to come from the company — and claiming the recent Windows 11 security updates were uniquely breaking Phison-based SSDs — is a falsified communication, and the controller vendor says it is pursuing appropriate legal action while...