This article refers to the HP Folio 12-2000 running Windows 7 with BitLocker.
Resuming the Folio 13 from hibernation will result in BitLocker detecting a change in the system boot information and asking for the recovery key.
Windows BitLocker Drive Encryption Information The system boot information has changed since BitLocker was enabled. You must supply a BitLocker recovery password to start this system. Confirm that the boot changes to this system are authorized. If the changes to the boot system are trusted, then disable and re-enable BitLocker. This will reset BitLocker to use the new boot information. Otherwise, restore the system boot information. ENTER=Continue
I have found a workaround by disabling the “Internal network device boot” option within the BIOS. I informed HP about the issue and the workaround and was told that they had previously received a report of this issue and their engineers are working on a fix that will probably require a BIOS update.