Microsoft is actively investigating reports of solid-state drive (SSD) and hard disk drive (HDD) failures and data corruption issues linked to its August 2025 security update. The tech giant has acknowledged the problem but states it cannot reproduce the issue internally.
## The Problem
Users began reporting drive failures after installing the KB5063878 security update for Windows 11. The issue was first identified by a Japanese PC builder who noticed SSDs disappearing from the operating system during intensive write operations, particularly when drives were over 60% full.
The problem appears to affect multiple drive brands and models, including:
– Corsair Force MP600
– SanDisk Extreme Pro
– Kioxia Exceria Plus G4
– Various drives with Phison and InnoGrit controllers
## Microsoft’s Response
In a statement to BleepingComputer, Microsoft confirmed awareness of the reports but emphasized that internal testing and telemetry data haven’t shown increased disk failure rates. The company is collaborating with storage device partners to identify the root cause.
“We are actively working with our storage device partners to try to reproduce the issue,” Microsoft stated. “Neither internal testing nor telemetry have identified an increase in disk failure or file corruption.”
## Industry Collaboration
Storage controller manufacturer Phison has also acknowledged the issue, confirming they’re working directly with Microsoft to resolve the problem. The company described it as an “industry-wide effect” that has potentially impacted several storage devices.
## Temporary Workarounds
Until Microsoft releases a fix, users should take precautionary measures:
– Avoid writing extremely large files (tens of gigabytes) in single operations
– When extracting large compressed archives, process them in smaller batches rather than all at once
– Exercise caution with intensive disk operations on drives that are more than 60% full
## Current Status
Microsoft continues investigating whether the issue stems from their update and has promised to provide updates as more information becomes available. Users experiencing problems are encouraged to contact Microsoft Support or report issues through the Feedback Hub.
The company’s customer support teams have not yet received widespread reports of the issue, suggesting it may affect a limited subset of systems with specific hardware configurations.