220-1102 Question 147
Single answerHibernateA user says their Windows laptop is "draining battery overnight" even though they close the lid before putting it in a backpack. You review the power settings and confirm the lid-close action is configured for Hibernate on battery. The battery report shows the system is entering Sleep instead of Hibernate after the lid is closed. Which action should the technician take FIRST to ensure the laptop uses Hibernate as intended?
- A
Enable hibernation by running powercfg /hibernate on
- B
Increase the display timeout so the screen can shut off before the system hibernates
- C
Disable the page file so Windows has more space to create the hibernation file
- D
Set the active power plan to High performance
Show answer and explanation
Correct answer: A
Explanation
Hibernate saves the contents of memory to disk and powers the system off, which helps prevent battery drain during long periods of inactivity or transport. In Windows, Hibernate requires hibernation to be enabled, which creates and uses the hiberfil.sys file. If that feature is disabled, the computer may fall back to Sleep or another available power state even if the lid-close action is set to Hibernate. The best first step is to enable hibernation with the powercfg command, then verify the lid-close action and supported sleep states if needed. This aligns with standard Windows power-management troubleshooting practices documented by Microsoft for powercfg and Hibernate behavior.
- A. Correct.
Correct. If hibernation is disabled in Windows, the system cannot use Hibernate even if the lid-close action appears to be configured that way. Enabling hibernation with powercfg /hibernate on restores the hiberfil.sys file and allows Hibernate to function properly. This is the first practical step because the symptom shows the configured behavior is not being carried out.
- B. Incorrect.
Incorrect. Display timeout only controls when the screen turns off and does not determine whether the system enters Sleep or Hibernate. Someone might choose this if they confuse screen power management with system power states, but it will not resolve the overnight battery drain caused by using the wrong sleep state.
- C. Incorrect.
Incorrect. Disabling the page file does not help Hibernate. In fact, Hibernate depends on the hibernation file, not the page file. This option reflects a common misunderstanding between virtual memory and hibernation storage. Disabling the page file could also negatively affect system performance and stability.
- D. Incorrect.
Incorrect. Changing to High performance generally reduces power savings and does not directly fix a disabled hibernation state. A technician might choose this thinking power plans control all power behaviors, but if hibernation itself is unavailable, changing plans will not make the laptop hibernate when the lid is closed.