Hello, i've had some success deploying WIndows 7 / 8.1 with bitlocker pre-provisioning. However today i've tried to bitlocker a Dell Latitude E6540 laptop and noticed the bitlocker pre provisioning step taking very long. After the wim file and the drivers are applied the disk is only encrypted to 8 % or so. After the setup configuration manager reboot the enable bitlocker ts step fails because the encryption is not completed.
I've seen this behavior on older models (eg. Optiplex 960) but i would not have expected this to happen on new hardware. Has anyone experienced something similar ?