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Issue: SecureDoc does not detect SED drives as Opal on Lenovo devices but instead the drive is software encrypted.

Root Cause:
Lenovo-provided images is equipped with the installed Intel NVME driver by default, or device configurations that possess both an NVMe SED and a SATA SED/SSD/HDD).
Intel NVMe driver is not considered for Hardware Encryption compatibility.  While this driver is installed on devices it does not support Hardware Encryption of any NVMe SEDs by SecureDoc. 

Workarounds: 
1) Do not install the Intel RST driver when you are deploying to an NVMe-only device configuration (Note: This action cannot be taken by customers that make use of Lenovo-provided images that install this driver by default, or device configurations that possess both an NVMe SED and a SATA SED/SSD/HDD); 
2. Manually select the Microsoft NVM Express Controller as your default NVMe controller by selecting the Intel NVMe controller and "updating it" from the local drivers on your device. 

Uninstall SD and delete the C:\program files\winmagic folder. 
Apply the workaround as the above suggested steps.
Run the SDRecovery tool to determine  how the drive is detected whether it is hardware or software. 
If it detects hardware then you can then reinstall SD on it.