Has anyone used WinPE 10 with the E5520s yet? I just upgraded the ADK from 8.1 to 10 on my SCCM site server, and now the SCCM task sequences fails with "Unable to read task sequence configuration disk" on E5520s. It works fine on our E6XXX models.
During the error on the SCCM task sequence, if I check the disks in cmd prompt, it reports "no disks found". If I run the same check early in the loading of the boot media, I get the same thing. But if I wait for the boot media to get to the wizard that allows me to select the task sequence, I can see it in diskpart again. My suspicion is that after the reboot, the HD either isn't coming back up at all, or isn't visible quick enough and the task sequence fails because of it. I tried to boot to a vanilla WinPE from a usb drive, and I get a BSOD during the winpeinit script. The stop error is "NO_MORE_IRP_STACK_LOCATIONS" -- Joshua Delaughter
