vlastní instalace windows, nebo originál?
v prvním případě doinstalovat chipset driver.
výrobce dále nabízí:
Operating System-Enhancements and QFEs: Essential System Updates
http://support.hp.com/us-en/drivers/selfservice/HP -Pavilion-g6-Notebook-PC-series/5048672/model/5078 477Fix and enhancements
Includes the following fix from Microsoft Knowledge Base Article: KB975599 - FIX: Stop error when you put a computer that is running Windows 7 or Windows Server 2008 R2 to sleep or into hibernation, or when you restart the computer: "0x9F"