My WD Black SN750 NVMe SSD crashed unexpectedly, and afterward Windows, Command Prompt, and DiskPart all reported that the drive was in a read-only state. I tried the usual Command Prompt and Registry Editor fixes, but nothing changed. Is the SSD permanently damaged, or is there a safe way to restore write access?
3 Answers
The drive may not be completely inaccessible yet, but it is probably defective. SSDs can enter a permanent read-only mode when the flash memory can no longer safely accept writes. Treat this as a data-recovery situation rather than a Windows setting problem, and plan to replace the drive if it is still under warranty.
The practical steps are: copy your important data, run a health check, and contact the manufacturer for an RMA if the drive is covered. Registry and DiskPart commands generally cannot fix a hardware-level failure that is forcing the SSD into read-only mode.
A sudden switch to read-only often means the SSD has detected a serious hardware or NAND problem and is protecting the data that remains. If the files are still accessible, copy everything important to another drive immediately. After that, check the SSD’s health and error information with a tool such as CrystalDiskInfo or WD’s diagnostic utility. If it reports warnings or the drive stays read-only, replace or warranty-claim it.
I’d avoid formatting or repeatedly trying to force write access until the backup is finished. Those attempts won’t repair a failing SSD and could make recovery harder.