The computer won't boot up. When I hit the power

if you have any external devices plugged in such as mice or hard drive or usb unplug them and then try to reboot. check online for the brand name of your computer for "safe Mode" typically its hitting the F buttons or the delete button and going into safe mode then if it will save the file you really need. then try to reboot

Hello,

Go to safe mode and observe the problem from there.

Here's what you can do to boot to safe mode.

Restart your computer and tap F8. Use the arrow keys to highlight safe mode and hit enter.

When you are in safe mode observe it. Let me know if it goes black.

Let me know if it losses power or just the screen that goes black and power are on. You will know that by looking at the power indicator in the computer.

David

Screen won't come on when? When you first hit the power button to boot it up? Does anything ever post to the screen when you hit the Power Button? Or does it seem like it booted up all the way (you hear the fan running, you hear the hard drive spinning) except the screen is black?

If it seems like it booted up all the way except the screen is black try the steps below.

Shine a flashlight on the dark screen to see if you barely see the icons on the desktop. If so, then the LCD Inverter is bad.

Plug in an external monitor and see if the display shows up on it. It can be any kind of monitor even the old big fat crt monitors as long as it has a vga cable to connect to your computer's vga port. If so that proves your video card is ok. The video will show on most systems when you reboot without you having to do anything. Some systems will require you to hit the FN (Function key) + F1 thru F12. Hold down the FN key then hit the correct key for displaying on the monitor (F1 thru F12). The correct key will normally have CRT/LCD on it or it will have the icon of a display.

If you see no icons by shinning a flash light and the external monitor works, then your screen is bad. If you see no icons by shinning the flash light and nothing shows on the external monitor, then most likely your video card is bad.

If it does not seem like it booted up all the way try the steps below:

When you plug in the power cord is there any lights whatsoever on the laptop, where the plug goes in or on the AC Adapter of the power cord?

When you press the power button do you hear fans running, hard drive spinning, lights on the computer, hear any beeps or lights constantly blinking, hear the DvD/CD drive click and the light on the drawer of the DvD/CD turn on for a second or two? If so the laptop is trying to boot or may have booted, but the screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with the laptop and why it is not booting. Most times it's a motherboard issue when you hear beeps or blinking lights continuous. Most times the problem is with the memory or Video Card. Count the Blinking Lights or Beeps and take note of their pattern (1 Long or 1 Long followed by 2 Short).

Maybe your power cord is bad if you don't get anything to happen whatsoever when you press the power button. And if that's true maybe you was operating off the battery the last time you had it on and since the power cord is bad, it was not charging the battery so the battery is drained and the power cord is bad.

Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove the Battery, then Press and Hold the power button for 30 seconds. After 30 seconds plug the power cord back in (leave the battery out) and hit the power button to see if it boots. If it does, you can put the battery back in and let it charge.

Maybe your DC Power Jack which is where the power cord plugs into the computer is bad. Take an ink pen and push the tip inside the jack and see if the little pin wiggles, if so the jack is bad. You'll have to take the laptop apart to fix it. Most times it is soldered onto the motherboard, so you will have to desolder the old and solder a new one.

Maybe your memory is bad or the memory slot is bad.

Remove the Power Cord, Remove the Battery, Remove the cover that houses the memory on the bottom of the laptop then remove one of the memory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x on it with an ink pen. If it fails to boot then move the chip to the next memory slot and try rebooting. If it fails take the chip out and set it aside, then put the other chip in and try booting it in both slots. If it boots, just to verify that the chip set aside is bad, mark an x on it and put it into the open memory chip slot and try booting.

When you press the power button do you hear the fan running, hear the disk drive running, see any lights, do you hear the cd drive click once and see the light come on briefly on the cd drive door? If you see all the aforementioned then it is surely trying to boot. Computers don't boot mainly because of the following problems. 1) Bad Power Cord or Power Supply. 2) Electro Static Buildup. 3) Bad Motherboard 4) Bad boot or system files.
Remove the Power Cord and the battery if it's a laptop. Press and Hold the Power Button for 30 Seconds. Then replace only the Power Cord and try hitting the Power Button. If it boots you had an Electro Static Buildup. If you have boot or system files that are missing or corrupt normally the system will be telling you that on an error message that appears on the screen. Does your system show you anything on the screen when you press the Power Button? If not you have a Power Supply or Motherboard issue.

This is a hard drive issue, remove hardware and reseat it back into place, sometimes this will work and run fine. But it is more than likely your hard drive will need to be replaced.

After hitting the power button on your computer, throw it into "BOOT MODE" and select your hard drive. See if this helps your computer load. If so, you will have to go into your BIOS Setup and make your current hard drive your Primary Boot Device.


If this doesn't help, load your restore disc and check your drive for errors.

Your problem shouldn't be anything more than a few registry errors OR a boot problem.

That blinking underscore is the way in which the laptop's BIOS is telling you that it didn't find any Windows to boot to - it was completely corrupted.
The only thing left to do is to reinstall it.

Hi ,

Please follow these trobleshooting steps......

Turn the computer off and then disconnect any external devices connected and then when you turn the computer on or as son 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 then 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

• 1) TAKE OUT YOUR LAPTOP BATTERY
• 2) REMOVE YOUR AC ADAPTOR CORD, that's the wall power, remove it.
• 3) NOW HOLD DOWN THE POWER BUTTON FOR 30 SECONDS.

That will drain any static electricity that has built up on your laptop system board and many times fixes the problem of a black screen. After the 30 seconds re-connect your laptop to the wall power and hit the power button normally and see if the laptop comes back up.

Replace your battery.
Restart!

How old is the computer? Make sure that the power light comes onto the monitor when you plug it in, should be orange and then turn green when video card syncs with it when PC is turned on. If you are getting black screen when PC is powered on:
1. Bad video card
2. Bad video cable
3. Bad monitor
1Solution: Try using a different monitor attached to this same PC and see if it works. If it does, then its the monitor, its cable, or its power supply. If it doesn't work, then its the video card or the video cable coming from monitor.