But I've never seen that, just blue screens. :) Maybe this was part of an update or service pack. Who knows.
Windows Resume Loader
Your system's memory configuration has changed since it entered
hibernation. If you proceed, the data needed to resume from hibernation
will be lost. To preserve this data, turn off the system power, restore
the orginal memory configuration and reboot the system. Otherwise, press
to delete restoration data and proceed to system boot menu.
Delete restoration data and proceed to system boot menu.