Windows 11 update KB5063878 – why you should remove it

Microsoft’s August 2025 update KB5063878 for Windows 11 has quickly gained a bad reputation. Reports from users worldwide confirm that this patch can cause serious SSD and HDD issues, including:

  • Drives disappearing completely during large file transfers
  • Partitions suddenly showing up as RAW and unreadable
  • Potential data corruption after heavy workloads

Sources like Tom’s Hardware and Windows Latest confirm that Microsoft and SSD makers are now investigating the problem.

What you should do

  1. Uninstall KB5063878

    • Open Settings → Windows Update → Update history → Uninstall updates and remove it.
    • Or run this in an elevated Command Prompt: wusa /uninstall /kb:5063878 /quiet /norestart

  2. Pause Updates
    To prevent the update from returning, go to Windows Update and set a 5-week pause. This gives Microsoft time to issue a fixed patch.
  3. Stay Safe

    • Keep backups of important data.
    • Avoid large SSD transfers (>50 GB) until Microsoft resolves the bug.

Removing KB5063878 is currently the safest choice if you rely on your SSD for daily work. Pausing updates for a few weeks ensures your system stays stable until a corrected update arrives.

The problem is not limited to external drives – it also affects internal boot NVMe SSDs. If your system disk is NVMe, it could become unstable after installing KB5063878.

Sometimes the best update is no update at all – at least until Microsoft fixes it.

Knud ;O)

PS. A safer choise in the future is changing to Linux ;O))