Forum Discussion
Windows Autopilot Error Code 0x800705b4 Preparing device for mobile management
Recently we're also experiencing this same intermittent error during our User-driven Autopilot profile on 20H2 HP laptops as well. Our scenario is we're early on in a migration from legacy AD-joined and MEMCM managed to Intune co-management with MEMCM. We wipe/reset the devices (either via Company portal or through Windows) to put the device into OOBE and into Autopilot. There isn't any CM Client stuff on there after this wipe or reset.
Get-AutopilotDiagnostics for these devices for which this error occurs seems to indicate the Autopilot issue happens very early in the 'Device Preparation' portion. Last event is "Download started" for Sidecar and is only the 4th event in the timeline.
Have looked at BIOS/UEFI time, and any profile and app changes we've made recently, also have tried clearing the TPM as part of our wipe (also tried during OOBE), and hasn't consistently helped. Again it's intermittent and some users might get this error, wipe/reset, then go through successfully on the same device.
I would agree with Rudy_Ooms_MVP that it is a web filtering/firewall issue, that there are certain Intune services the device can only partially connect to? But having difficulty determining what they are specifically. Have gone through the required Intune URLs and all are open, including those for the TPM (infineon, etc).
For the record: what did it for me is "clear TPM" using tpm.msc which I ran from command line while the laptop was stuck at the very screen published here I pressed shift-F10 and that opens up command prompt and there I typed tpm.msc and from there - clear TPM which triggered reboot, the next time Auto Pilot self-deploying profile worked like a charm, no more pesky error