Key Takeaways
1. Microsoft released a new Windows 11 update (KB5063878) to fix security vulnerabilities.
2. Users are experiencing issues with SSDs during large file transfers over 50 GB, leading to SSD inaccessibility.
3. SSDs with Phison NAND controllers are particularly affected, but other models like SanDisk Extreme Pro are also experiencing problems.
4. The issue appears to be less widespread compared to other Windows problems, with few user complaints reported.
5. Users are advised to avoid large file transfers or consider delaying the update if they have SSDs with Phison controllers.
Microsoft has just rolled out a new update for Windows 11, known as KB5063878, featuring build number 26100.4946. According to the patch notes, this update aims to fix security vulnerabilities within the operating system. However, users are reporting that it may be causing problems with SSDs during heavy file transfers.
File Transfer Problems
According to a user on X, @Necoru_cat, the issue arises when users try to transfer files that are larger than 50 GB continuously. The operating system seems to fail in recognizing the SSD after a prolonged transfer period. If the computer is restarted, the SSD may become inaccessible. The user conducted some tests and found that SSDs utilizing Phison NAND controllers are particularly affected, though not all SSDs are experiencing this issue.
SSDs Affected
A Japanese news site, NichePCGamer, has also covered the problem and provided a list of SSDs that are reportedly encountering issues with the Windows 11 KB5063878 update. The list indicates that it’s not just SSDs with Phison controllers that are affected; it also includes other models, such as the SanDisk Extreme Pro. @Necoru_cat later mentioned that some SSDs may become inaccessible due to this glitch, but they can often recover after a reboot. Those SSDs include:
Currently, the issue appears to be less common compared to other significant Windows-related problems, as there aren’t many user complaints appearing on public forums. It’s important to note that both Microsoft and SSD manufacturers have not yet confirmed this issue related to the Windows 11 update. Users with both updated systems and SSDs featuring Phison controllers should refrain from making large file transfers over 50 GB. It might be wise to hold off on updating to KB5063878 or to revert to the previous version if the update has already been applied.
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