How about my ssd 1TB cannot be detected after sudden blue screen and now all my files are gone i brought my ssd in a computer repair shop but they failed to detect the ssd....
Update issue KB5063878 (OS Build 26100.4946)
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Stoian Ciprian
0
Reputation points
Hello,
There are various messages circulating on the internet regarding a recent update to Windows 11 that would affect SSDs and there are recommendations regarding uninstalling this update. Is there an official communication regarding issues related to the KB5063878 update and the need to uninstall it?
Thanks,
Windows for home | Windows 11 | Windows update
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Ludwing Erick Rodriguez Alvarez 0 Reputation points2025-08-27T16:20:43.8533333+00:00 -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(60.8, 74%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENB%3C/text%3E%3C/svg%3E)
N Brown 0 Reputation points2025-08-28T15:03:34.9+00:00 I hope they hurry up I have Windows update paused so I am getting no definition updates for antivirus. So risk viruses or update and risk losing a drive. I hope those who lost drives get them replaced by MS!
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Daniel Šulík 0 Reputation points2025-08-28T16:41:23.0333333+00:00 Hi,
I had the same problem with my WD 500G SSD. I worked out that I had to format the disk and then it was recognized again and I was able to install win 11 on it again. Without formatting the SSD my computer was not able to find the disk.
Here is what I did:- Try to install win7 from USB and when your disks are found simply format it.
- Then try to install win 11 and should work. I give you no guarantee it works for everyone.
MS is treating us all badly and with arrogance. Their product testing is probably not great. I hope they do not use AI for writing any piece of their code :-). Just hoping ...
Good luck
Dan
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Carlos Henrique Raach 0 Reputation points2025-08-29T01:05:51.4966667+00:00 I had this issue on my Acer Nitro V15 laptop. After disabling VNM, it worked again and I had no problem since then.
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2 answers
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(131.20000000000002, 13%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECB%3C/text%3E%3C/svg%3E)
conrado bermejo 5 Reputation points2025-08-27T11:56:09.3433333+00:00 -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(204.8, 96%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3END%3C/text%3E%3C/svg%3E)
Neil D 28,220 Reputation points Volunteer Moderator2025-08-27T12:30:56.5566667+00:00 Have you read the link posted previously. It can be random and I don't think anyone here can answer your question.
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AceRobertT 13,630 Reputation points Independent Advisor2025-08-26T04:53:50.72+00:00 Hello Stoian. Microsoft has recognized scenarios and acknowledged bugs associated with Windows 11 update KB5063878 (OS Build 26100.4946), leading to SSD data corruption and drive disappearance. Users experiencing issues with read/write operations on certain SSDs while transferring large files or batches of files that were over 60% full have reported symptoms such as unreadable partitions, RAW (non-existent) file systems, and inaccessible SSDs, and seems especially prominent on SSDs utilizing Phison NAND controllers, though possibly not limited to them.
There were no Microsoft official advisories to perform an uninstall on the update, though Microsoft is working on this with the collaboration of SSD manufacturers. As the situation develops, and especially if you have developed symptoms, we would advise you to pause updates, reinstall the KB update KB5063878, and backup your key data immediately.
Here's the reference: https://www.windowslatest.com/2025/08/20/microsoft-is-investigating-windows-11-kb5063878-ssd-data-corruption-failure-issue/
Note: I am providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.
Best regards,
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Tuatara 0 Reputation points2025-08-27T03:19:16.11+00:00 Wrong ... you said
"As the situation develops, and especially if you have developed symptoms, we would advise you to pause updates, reinstall the KB update KB5063878, and backup your key data immediately."
NOOO .... Uninstall the update -
Ludwing Erick Rodriguez Alvarez 0 Reputation points
2025-08-27T16:23:54.06+00:00 Good morning AceRobert, mechanical hard drives have also been affected, in my case an 8TB Seagate Barracuda, one with a large amount of data. I'm sharing my case with you at the following link:
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