12-22-2013 06:56 AM - edited 12-22-2013 11:35 AM
I would like to enable the eDrive feature on my T440s to encrypt my hard drive. How can I do this?
In order to do so,
According to  "If everything is eDrive compliant you won’t be asked whether or you want to encrypt all or part of the drive". However, I am asked whether I want to encrypt all or part of the drive!!
So my questions is, what is wrong? How can I enable the eDrive feature?
12-25-2013 02:27 AM
The problem seems to be the Intel Rapid Storage AHCI Driver. Without installing the driver offered on the Lenovo page (18.104.22.1686) and using the driver that came with Windows 8.1 (22.214.171.1243), it works.
Does anybody experience the same problem? Is there gonna be new driver that supports the eDrive feature?
12-27-2013 12:13 PM
We just recently became aware of this problem with the 126.96.36.1996 RST driver from Intel. You are right - it is somehow blocking the hardware-encryption mode of BitLocker (eDrive). Right now, I don't have any solution except to use the Windows 8.1 inbox driver like you said. Sorry for this trouble. When we get more info from Intel, I will share it here.
12-28-2013 04:00 PM
12-29-2013 04:07 PM - edited 12-29-2013 04:08 PM
This problem of no edrive enablement also occurs on the T440p and T540p with the Crucial M500 1 TB ssd.
I have used Drivermax (I have a Pro account) to download the aforementioned Intel driver (188.8.131.523) but this did not help.
I believe Intel and Lenovo should make this a priority.
12-30-2013 10:48 AM
....and here I thought I was the only one experiencing this issue. My T440s (model 20AQ004HUS) has the Samsung 256GB SSD and is marketed as an eDrive in the TABook. I'm using the Lenovo preload and didn't change any partitions. IIRC there is some conflict with encription and wake commands and this might seem to make 30-Day Standby and Intel SmartConnect iSCT incompatible. On a sidenote, I just noticed that TVSU updated iSCT to version 184.108.40.2064; however, the program is now missing from Start so I have no idea how we're supposed to enable/disable the functionality.
12-30-2013 11:18 AM
As far as I know, there is no version of Intel Rapid Storage (RST) driver that works with eDrive. The only way to make it work is to use the Win8/Win8.1 inbox driver "Standard SATA AHCI Controller". We are currently asking Intel about why their RST driver is not compatible with eDrive, and when I have more info I will post about it here.
Now, about how to enable eDrive. The Microsoft design is that eDrive only gets enabled when partitions are created on a blank drive. Microsoft does not provide a way to enable eDrive later - I have no idea why. Because the Lenovo preload ships with eDrive disabled (*), this means the only way to enable eDrive is to wipe your SSD and start over.
You can check whether eDrive is enabled or not by going into BIOS F1 Setup and looking in the Security -> Password menu. If you see "Hard Disk1 Password" option at the bottom (below Power-On Password), it means eDrive is enabled. If you don't, then you either don't have an eDrive, or else the eDrive is disabled.
(*) Lenovo screwed up and shipped some eDrives in the enabled state - but because the Intel RST driver is in the Lenovo preload, even with an enabled eDrive it is not possible to use BitLocker in Hardware mode.
You may have a question about why Lenovo ships eDrives in the disabled state. And here are the reasons:
Let me know if you have other questions and I'll try to help as best I can.
12-30-2013 12:52 PM
12-30-2013 12:58 PM