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BjFy
Copper Contributor
Aug 27, 2025

Win11 Update KB5063878 killed my SSD, how do I request a refund from Microsoft?

Hi,

as the heading states - the KB5063878 update has bricked my Samsung MP600 Gen4 M2 SSD. I was playing some games last night, and got a "Unexpected Store Exception" error with consequently booting into BIOS.

Any reboot after that only boots into BIOS, and Slot 1 M2 disk is not discovered.

I made a image USB stick which booted into the install medium and that actually discovered the disk, but the install fails with error code 0x80042444 - 0x4002f (Disk error).

Online I see now an increasing amount of reports about the update killing SSDs.

  1. Microsoft NEEDS to retract this update IMMEDIATLY.
  2. Where can customers file a refund claim for destroyed hardware as I now am in need of a new SSD for around $160

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