My laptop boots but after a few seconds it completely shuts itself off.
my comp keeps P**** me off, i restart and it wont boot up, the lights come on, then it shuts off, then boots up, nothing on the screen (again) then shuts down.
I cold boot it a couple of times, eventually the screen comes up and its fine
like wtf? lol why does it do that, i have no virus's
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Re: laptop boots then shuts automatically off
If you haven't tried it yet, pull the battery out and try booting from the adaptor only.
If it boots normally, then your battery pack may be bad (shorted cell) or the regulator that has the job of charging and monitoring the battery pack while keeping your system running may not be healthy.
If you own any multimeter (at the cost of Chinese DMMs, everyone should own one), check the battery pack for charge.
Under normal conditions, they should measure a couple of percent higher than their rating.
You will have either Lithium Ion or Nickle metal hydride batteries in the pack so should measure some multiple of the nominal cell voltage of one of those types that are respectively 3.6 & 1.2 volts.
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Hold the power button down continually until it shuts off. After a few seconds, try turning it back on. Mine has pulled a few tricks like that.......Mine last year automatically changed a command in the boot sequence and I had to take it to a friend to get it figured out.
If your laptop appears to boot up and the hard disk LEDflashes, then the problem is probably a back light fault. This can be a faultyinverter or a faulty CCFL lamp. Please click on this link and follow myinstructions to identify the fault and possible fix :- http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen
This is the system error and it comes when the user doesnot shut the comp in proper way.//
it can also come if due to some reason the comp is shut automatically//
to get rid of it try last known good configuration.
shut down the comp// restart and immed start hitting f 8 cont to get the advance boot menu//
select LKGC and once that is done hopefully your computer will boot perfectly//
Try this, if you have a fast hand, the second it boots, push Ctrl+Shift+Esc and end taskeng.exe. If you can't do it fast enough, try booting into safe mode, going to scheduled tasks, and removing any suspicious ones. If you don't know how to boot to safe mode, push f8 until you see a screen which allows you to choose safe mode.
If it's not beeping during the first start up then it's not POSTing. Beep means everything connected to it seems to be functional ie PnP
Try pulling out your memory and reseating it.
Try pulling out your battery for 5 minutes then plug in ac(without batt) and see if it will boot.
Try pulling your hard drive and reseat. (access by covers on bottom...dont be scared. Touch something that's grounded just before you remove)
If all this and still no full POST(with beep/s) then sounds like a new mobo or processor.
several things it could be but im going to look at the obvious the battery and cord hook up
laptops when plugged into contstant 120 power the battery is supposed to go into stand by mode and shut battery off so power dont leak into battery
if you have low battery with it plugged into 120 the comp will still think the battery is powering the laptop if battery dead then comp shuts down lack of power
other thing is somehow you caught a virus that reboots comp from dos screen mode
the main thing i always ask is what was the last thing that happened before it did what its doing now
example= was there a power surge pop up screens ect.
when you turn on the pc keep pressing F8 and it will boot into safe mode.
When in safe mode highlight the option 'Last Known Good Configuration' and press enter.
The pc should now reboot normally, if not you will need your installation cd to do a system repair.