Q: Why can't my laptop enter the sleep state? I can enter it when I just installed Vista but I don’t know what happened later. After clicking sleep Just quit just can't go to sleep.
Answer: Vista still uses the hibernation mechanism of Windows XP. If the system partition (usually the C drive) is not enough to save the hibernation file (the size of the physical memory) it will cause the computer to fail to sleep status. Therefore check whether the remaining space of your system disk is enough if not enough delete junk files and useless files and clean up unnecessary components and uninstall unused software to make room.?Vista Japan has a major failure and is expected to recover after April