Overview

• Users report SSDs and HDDs disappearing from Windows after large, continuous write operations, with SMART data becoming unreadable.
• Independent tests by X user @Necoru_cat reproduced the issue by writing a 97 GB game folder, unpacking a 76 GB ZIP, and repacking it, triggering 2, 4, and 6 outages across the three scenarios.
• Failures typically surface after roughly 50+ GB of writes at high controller load; some drives return after a restart but can fail again and recent data may be corrupted, while isolated reports describe drives not recovering.
• DRAM‑less SSDs with Phison controllers appear most affected, with reports naming models from brands such as Corsair, Kioxia, and SanDisk.
• Microsoft has not confirmed the cause or issued a fix, and outlets advise avoiding large transfers and ensuring current backups until official guidance is available.