Fiz a pergunta e obtive a resposta aqui: Microsoft Answers . Então, aqui está como você realmente encontra o que está ativando sua hibernação novamente usando inicialização limpa.
1. Start msconfig.exe
2. On the general tab select "Selective startup" and uncheck "Load startup items".
3. On the services tab unselect all first.
4. Runt the command "powercfg -h off" to turn off hibernation.
5. Reboot
6. If hibernation is still deactivated start msconfig.exe again and activate half of the services.
7. Repeat 5 and 6 until you find the service causing hibernation to be turned back on (don't forget to do step 4 if it is activated again).