So, near 1 month ago, I ended up returning the disk from the OP to SanDIsk and under warranty I got a 512 GB X210 for the 2 locked SSDs.
Until that time, I ran Win 8.1 Enterprise on a SAMSUNG 840 EVO with no issues. Within weeks, I bought a retail license of Windows 10 Pro, it makes sense if your hardware changes, e.g.
-same motherboard,
-new SSDs
-changed my AMD FX 8320 95W processor with a deal on an unlocked higher 4.2 GHz CPU (4350) Black edition, which is 1 chipset more advanced than the 8-core 8320 with lower GHz.
Lots of blue screens of death - 3+ times? Somewhere between multiple clean reinstalls, my boot, C:\ drive, SSD 240 GB "..[was] locked."
The system restore media on a 8GB USB 3.0 drive couldn't do the restore. Sad.
None of the "create a restore point"s were available.
Maybe there was an attribute SET on the disk, LIKE READONLY, that I could clear so that the OS had an unlocked C:\ drive it could boot from. Maybe I made a mistake somewhere - it was late - so I just entered DISK CLEAN into DISKPART, followed by create partition
primary,
If possible, I should have tried cloning/mirroring my dysfunctional C:\ drive to a safer drive.
DISKPART is now like my favorite CMD tool