New Delhi, Sept. 9 -- A number of Windows 11 users have been left scratching their heads after solid-state drives (SSDs) vanished from both File Explorer and the BIOS. The issue first cropped up after Microsoft issued its August 2025 update, called KB5063878. According to reports collected by Windows Report and Neowin, the problem appeared shortly after this update rolled out and led to widespread anxiety across online forums.

Disappearing SSDs are a serious concern especially for those who rely on the extra speed and storage for daily computing or work. Many assumed at first that Microsoft's update was to blame. As complaints escalated, both Microsoft and storage component supplier Phison responded, explaining that they could not reprod...