Left laptop on, when I cam back went in hibernation, I cannot wake it up

Might be normal. Most laptops have a "hibernate" mode to save on the battery. They go into hibernation when they are left alone for a while. You have to press the power button to wake them just like when you turn on. If you don't want it to hybernate, go into PC settings and turn it off.

check that it is not set to 'wake on wifi', if so, turn this setting off

When you get access, go into power options, select hibernate top right, and uncheck the box to the left to disable it, this will free up more disc space and get rid of microsoft worst idea.

Yep, pull the plug. Power Cord, remove the battery, then press the Power Button and hold it for 15 seconds.

Next time you boot up go into the Control Panel and check your Power Options. You can set it to never hibernate.

Some laptops will wake from hibernation by touching the keypad, moving the mouse, pressing any key, pressing enter or the space bar. Some laptops will wake when you press the power button. You'll think it's rebooting, but when you look it will say Resuming Windows.

No Sound? Check your drivers, check the volume level and make sure you don't have the sound muted. You can also check your Audio and Sound properties in the device manager or control panel. If you see the megaphone at the bottom right near the time, you can right click on it to get properties.

If it is in sleep pressing any key or moving the mouse will generally wake it up. If you left the computer unplugged in sleep mode then it most likely ran out of power. If your using hibernate I would recommend not using it as it has so many issues.... :) If you have to hit the power button to wake it up then it's either shutdown or in hibernate. FYI there will generally be an amber light on to indicate sleep mode. If no lights it's most likely not in sleep mode.
Comment if you need additional assistance.

you have to press the power button once to get it out of hibernation. If nothing else works you can do one of two things:

1] Press and HOLD the power button for about 5 seconds or until you hear the laptop turn off. Then turn it back on again by pressing the power button momentarily.

2] You can DISABLE hibernation. To do this - follow these steps,

• right-click the desktop and click on and click on "properties".
• click the screen saver tab.
• click the power settings button
• in the power options properties dialog box click the hibernate tab.
• uncheck the enable hibernation check box.
• click OK then click OK again

Hope that helps

Good Luck

HI, i suggest you unplugged your system from the AC outlet and leave for sometime to rest, power it on back after few minutes and put on your system.

Doing this will help wake your system up from hibernation.

I wish you best of luck.

press and hold the power button down for about 5 secs. The computer will shut down. Restart it and right click on the desktop, go to properties then look for screensaver tab , then choose power options, click on hibernation tab at the top and uncheck enable hibernation. Or choose stanby options and choose a longer time before the computer goes to sleep.

I had the same problem on my Toshiba Satellite U305, struggling with it for the past 4 months and having to use Shutdown each time I was done using it. Very frustrating! Toshiba worked with me several weeks, telling me to re-install Vista and all the fixes, which took a lot of work backing up etc and this did not fix the problem. Today they finaly told me to try entering this special command and it fixed my problem. Maybe it will fix yours too.

Create a shortcut on the desktop and to make the shortcut, right click on the desktop, choose Create Shortcut, enter CMD.EXE where it asks you to "Enter the location of the item". This will create an icon on the desktop that looks like a mini-command prompt. Then on the desktop, RIGHT click on the CMD.EXE shortcut/icon you have created and select "Run as administrator". This will open a command prompt window. Here in the black-box with white letter window, enter the command "powercfg -h on" (without the quotes). Reboot and see if the problem is resolved. This fixed my Toshiba Satellite that had this problem.