Microsoft says SSD failures aren’t attributable to Home windows 11 replace

Microsoft has lastly responded to the rumors and grumblings that accuse Home windows 11 replace KB5063878 of reducing off entry to SSDs. Underneath sure circumstances, Home windows will not show an present SSD—or just shows the partition as “RAW.” This disappearance impacts the existence of an SSD in each File Explorer and the BIOS.

Microsoft stated in a service alert (noticed by BleepingComputer) that it discovered no connection between the issues described by some customers and Home windows 11 replace KB5063878, and that it couldn’t reproduce the issue on present techniques. The corporate then started amassing person stories with extra particulars from these affected.

“After thorough investigation, Microsoft has discovered no connection between the August 2025 Home windows safety replace and the sorts of exhausting drive failures reported on social media,” Microsoft stated. “As at all times, we proceed to observe suggestions after the discharge of each Home windows replace, and can examine any future stories.”

Microsoft has been working with storage system companions to breed the issue, however famous that neither telemetry information nor inside testing has proven a rise in exhausting drive failures or file corruptions after putting in the August 2025 Home windows 11 24H2 safety replace.

Amongst others, NAND controller producer Phison labored with Microsoft to repair the issue, however was additionally unable to discover a trigger for the reported errors after finishing their 4,500-hour investigation.

Till the foundation trigger is discovered and glued, Home windows 11 customers with exhausting drives which are greater than 60 % full are suggested to keep away from downloading, copying, or writing giant recordsdata (i.e., a number of dozen GB in dimension).