If you have used the Disk Cleanup Utility and utilized it to clear the hibernation file, you may be surprised to find that the Hibernate option is no longer available. You can restore the hibernate option by following these instructions:

1. Click the Start button.

2. Select All Programs.

3. Select Accessories.

4. Right-click on Command Prompt.

5. Select Run as Administrator.

6. When the UAC prompt appears, click Continue.

7. Type powercfg /hibernate on and press Enter on your keyboard.

8. Close the Command Prompt window.

9. Reboot your PC.