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No power We just put a new battery in our computer, the only thing that would come up was a black screen saying operating system not found. We started to get it to work and now the computer just shut down and we cannot get it to come back on. We plugged in the ac adapter but there are no lights coming on and staying on. The red light comes on and blinks 4 times and goes off again. Any ideas?

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Check your ac adapter if there is an output voltage (the plug that connects to your pc)

Posted on Oct 22, 2008

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When you turn on the lap top it says operating system not found. I put recovery disk 1/3 in and it loads windows files. Then a screen pops up and says windows recovery center or repair windows. For more...


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Mar 22, 2011 | Sony Computers & Internet

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MY FRIEND HAS A TOSHIBA LAPTOP.SHE DID SYSTEM RESTORE 3 TIMES(SHE PANICKED).NOW THE COMPUTER SAYS FILES MAY BE CORRUPTED.IT TRIES SYTEM REPAIR.WHEN ITS DONE SCREEN GOES BLACK.IF YOU TRY TO START NORMAL IT...


I was never put my file data at system disk. It's mean I always have two partition drive on my computer. So when the system crashes and can't repair, I can free to re-install the system without affecting my data. Base on my experience there is nothing to do than re-install your system. Backup your data first if its placed on system disk with Live operating system that you can found on internet such as SLAX Linux.

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The screen is black, i removed the battery and


Hi,
Turn the computer off and then disconnect all the external devices like (printer,usb devices etc)connected to the computer along with the cable for the internet .Then disconnect the cable for power that would be right on top at the back panel of the computer tower and with the power cable disconencted press and hold the power button for atleast 30 seconds.Turn the computer on if it takes you to the desktop then it means that there is some external device that is causing the computer not to come up to the desktop so find which deveice has gone bad check it by conecting one device at a time.
Next thing that you can try is turn the computer off and then when you turn the computer on or as soon as you press the power button to turn the computer on start tapping the F8 key repeatedly until you get a black screen that says advance boot menu option .Then used the arrow keys on the keyboard and highlite the option that says safe mode and hit enter,select the operating system and then when you get the log on screen select administrator .If it takes you to the desktop then you can try doing a restore by going to start?all programs ?accessories?system tools and then system restore ? select the date when you think that you r computer was working fine and then click on next next to exit from the wizard.Should fix the issue .
If the computer does not boot up to the desktop then without wasting time on any trobleshooting steps recovery needs to be done that takes the computer back to its original factory settings.To do this instead of the f8 key tap the f11 key till you get the screen that says system recovery ,click next until you get the screen that has advance option ?click on it ?select destructive recovery ?click next the recovery will start and the computer will be formated (whatever you have added after you bought the computer would be lost) ?If the recovery does not work this was then it needs to be done from the recovery disks and fot that you call call HP
all the best..............

May 21, 2010 | Computers & Internet

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