But surely we can come up with a workaround to prevent it. I tried the "Turn off hybrid sleep" policy before upgrade, but it didn't do it. The only other thing I can think of is creating a dummy hiberfil.sys with some wicked permissions, but I'm not sure if such permissions exist in an upgrade scenario (which should be all-powerful). Or doing that could botch the upgrade if the installer becomes confused. Then again, it might just work.