my computer randomly turns on by its self ?
491711
go into bios setup...look at the setting for waking up and make sure they are not selected, otherwise someone can turn on your computer just by sending it a fax signal.
747184
Is the computer on standby? If it is then you should shutdown the computer instead. \n\nRun an antivirus program on your computer to see if a virus may be the cause as well. Also check to see if you have had any recent errors, like driver conflicts or "the blue screen of death". That could also be a cause.
391318
This has happened with someone I know and it turned out to be Trojan (Virus) Probably you have virus on ur computer too.
658450
your pc is over heating that is why it is rebooting itslef and in due course it is damaging your software...\n\nIn short u have a hardware problem.\n\nwhat u must do ?\n\n1)check the temperature of your pc.\n2)check your fans.\n\nu must call a hardware expert and must install your OS again.
960049
take your laptop to the service center as this should not happend maybe the battries arnt proper or maybe theres a problem with the laptop itself
931639
it could be the power supply, you may want to take it to a pro
1165016
Your computer could have been heated too much.Try working on it after shutting down your pc for an hour or two.
154600
This can lead to two things.\n\n1.  Power supply is gone\n2.  BIOS is gone
1022366
Too vague. It could be a ton of things. My first guess is not a virus because it isn't happening all the time. Since it happens to be mostly when you are playing games my first guess would be your video card. Make sure that the card you are using matches the specs of the games you are playing - then update all the drivers for your current card and try again. If that doesn't work you might need a new card. It also could be memory. Try adding more. Your computer also could be running too hot so it turns itself off to prevent damage. Are all of your fans running? Check bios to see if your temperature is normal. Blow a high powered regular room fan on it while you are playing the games and see if it turns off then. Could be the power supply too. There are so many things. If this all sounds too daunting bring it to a tech or best buy and they can fix it for you, but they'll charge a ton and probably just tell you to buy a new computer from them.
332938
It could be that your fan has burned out.  If you notice the fan does not come on at all anymore, it's probably time to get a new one.  \n\nSide note... if your computer is in a room that tends to get warm, you're going to want to change that fan soon and/or use another fan (small household oscillating type) to cool your CPU unit.  If your system gets too warm, the whole thing will shut down till it has a chance to cool down again.
147653
Your "system idle process" should normally be very high when not much else is happening - it's Windows' way of saying "this is the unused CPU capacity". As far as the light always being on, it may be a software issue. When in doubt, take the machine to a PC shop or trusted friend whose day job is computer repair, and ask them to check for unwanted programs.
176164
If your computer is making a noise when it comes out of standby, then that is probably your hard drive restarting. The hard drive is shut off during standby.  It's normal.\n\nAs for why it's taking so long to think, then I agree with the others.  More RAM usually fixes that.
252039
The behavior you are describing is serious and is probably related either to a configuration with your motherboard, a problem with the CPU or similar.\n\nYou should definitely return it for service.
54967
I had a similar problem caused by an overworked power supply unit (PSU) which was cheap to replace, but in reality it's not going to be possible to diagnose over the internet as it could be any one of a number of hardware or software issues.\n\nMy advice would be to call some independent PC repairers. Some offer a no fix no fee service & should tell you up front what the cost is likely to be.
248826
Spooky!!!!!!!!\nTry taking a look at scheduled tasks or power management to see if it is set up to go off at that time or on.
1169820
I'd start by looking at the fan and giving it a clean if its necessary.  If you've changed memory sticks, then they could be defective - there's always the option of a virus infection as well
941158
You have a fun little virus called a zombie!  Your computer is on a timer will turn on at a certain time every day.  It wouldn't surprise me if your computer is also being used to send out bulk e-mails, commonly referred to as spam!  I would suggest that you download AVG, and spy bot search and destroy.  I don't also suggest you do a google search for Windows startup analyzer, download and install this program to find out what's running in the background of your system, in turn anything off that you don't recognize!  Until you track down and removed his virus I would also suggest you unplug your computer from the wall, when it is not in use.