I bought an SSD through a local marketplace, and the seller said it had been locked by a company through the BIOS. I initially assumed it was just BitLocker-protected, but Windows gives me an I/O device error when I try to format it. The drive appears in File Explorer and Hard Disk Sentinel, which reports 100% health and performance with plenty of remaining lifetime. However, the SSD seems to be read-only. Is it actually locked, or could it be failing?
4 Answers
Yes, some SSDs support hardware security features such as TCG Opal or other self-encrypting-drive locks. A locked configuration can cause write attempts to fail or make the drive appear read-only. Check the drive for a PSID label or code. A PSID revert can erase the drive and restore access, but it requires the exact code printed on the device.
Try using DiskPart and see whether the clean command works. If it returns an I/O or write-protection error, the drive may be hardware-locked or failing. If it has a corporate security configuration, only the organization that set it up—or a proper PSID reset—may be able to remove it. Be aware that a reset permanently erases everything.
Read-only mode can also indicate that the SSD has detected serious write problems. Many SSDs switch themselves to read-only so existing data can still be recovered before the drive fails completely. A health report showing 100% does not always rule out a controller or security-related problem.
A PSID reset is normally a cryptographic erase and usually finishes quickly, but it is destructive. Before trying it, confirm the exact SSD model and use the manufacturer’s supported tool. If there is no usable PSID or the reset fails, the drive may not be recoverable.
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