Hi, I recently bought a Self Encrypting Drive from Samsung, an 840EVO SSD, it comes OPAL 2.0 and Microsoft eDrive compatible.
During a Windows 8.1 test install, windows silently enabled the eDrive functionality, provisioning my SSD; I could use it no problem with BitLocker.
However that Windws 8.1 install was only a test-drive, I don't plan on using windows on my laptop, so I need to un-provision the SSD from the eDrive/Opal mode of operation, to plain ATA/AHCI, to issue an enhnanced secure-erase command and to enable Class 0
encryption by setting an ATA security password.
Please note that while operating under eDrive specifications, the disk doesn't accept ATA Security Erase/Enhanced Security Erase commands nor ATA security passwords.
Samsung, which produces the drive, told me to ask Microsoft Tech Support how to disable this functionality in software.
I have the drive's PSID security number in case it's needed, any help would be really appreciated, eDrive functionality provisioning wasn't a requested feature for me, and right now the drive is unusable for my needs/scenario.
Any help would be really appreciated.
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You need what's referred to as a PSID reverting tool. It takes as input the 32-character PSID printed on the drive label, and uses it to reset the drive to factory state. This means, security inactive and crypto-erased.
As far as I know, all of the eDrive manufacturers have such a tool for exactly this reason - because Microsoft enables the eDrive feature by default in Win8/Win8.1 setup and doesn't provide a way to undo it.
I know this doesn't help you now, but there are 2 ways to prevent MS from enabling the eDrive:
1. set a HDD password in BIOS (because eDrive cannot become enabled while ATA security is enabled, and vice-versa).
2. set a registry entry prior to letting Windows Setup partition the drive:
In other words, when you boot the Win8 setup DVD, press shift-F10 to load a command prompt, then set this registry entry BEFORE continuing with Win8 setup.
Back to your original question, ask Samsumg directly for their PSID revert tool.
I don't think Microsoft has this tool, nor do they see a need for this tool, because in their dreamland everyone runs Win8 with BitLocker so there's no need to PSID-revert an eDrive to use it for any other purpose.
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