What is NVME-READ-ONLY?
NVME_READ_ONLY shows up as a critical-severity storage drive (SSD/HDD) fault. The solid state drive controller detects media wear or flash array errors and locks itself in read-only write-protection to prevent further data loss. The user can read files but cannot save, modify, or format the drive. Another common trigger is excessive bad blocks. Use the steps below to track down and fix the cause.
Common Causes
- SSD write endurance limit (TBW) exceeded
- Critical controller hardware failure
- Excessive bad blocks
Step-by-Step Fix Guide
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1
Backup all files from the drive immediately
Backing up data is your immediate top priority. A read-only locked SSD is near complete physical failure.
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2
Buy a replacement SSD
Replacing the drive is the only way to recover normal write operations.
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3
Use SSD manufacturer software to check spare block count
"Use SSD manufacturer software to check spare block count" covers a less common but documented cause of NVME-READ-ONLY.
Commands & Diagnostics
wmic diskdrive get status
Frequently Asked Questions
The leading cause of NVME-READ-ONLY is SSD write endurance limit (TBW) exceeded, though critical controller hardware failure and excessive bad blocks also show up in our reports.
Try "Backup all files from the drive immediately" first — it resolves most NVME-READ-ONLY cases on its own. Only work through the rest of the guide above if it comes back.
Yes — NVME-READ-ONLY is a critical-severity error and can lead to data loss or hardware damage if it's ignored. Don't put off the fix steps above.
You shouldn't need to. Work through the guide above first — a reinstall is only worth considering if none of those steps help.
Open CrystalDiskInfo (free tool) to check your drive's S.M.A.R.T. status. Any yellow or red indicators — especially reallocated sectors or pending sectors — confirm the drive is degrading and should be backed up and replaced immediately.
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