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Black screen and a white oblong in the top left hand corner of the moniter flashing very quickj ly on and off.The pc will not let yo do any other task. This is a wireless mouse and key board set up. Many Thanks, Jonathon Bower.

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  • joecoolvette
    joecoolvette May 11, 2010

    To elate a little bit of what darkpain stated. Turn your computer on, start tapping the F8 key. (2 second intervals) Look at the screen that comes up, and either select Safe Mode, or Last Known Good Configuration. (Use the Up, or Down Arrow key to highlight it, then press the Enter key) Secondly, do you have the Restoration CD Disk for your HP computer? If so, turn the computer on, put the Recovery CD Disk in your optical drive. (CD/DVD Drive) Close the optical drive tray. If it does not start up automatically within 20 seconds or so, then restart your computer. TO RESTART: Press the CTRL key, ALT Key, and DELete key, AT THE SAME TIME. (Not shouting) When prompted choose Repair, or may be stated as Non Destructive Recovery. If you do not have the Restoration Disk for your HP computer, you can obtain one. The Restoration Disk is free. The Shipping and Handling is not. $17 for a 5 to 7 day ship, $24 for a 2 to 3 day ship. Contact HP is what you want to obtain said disk. Thirdly, you may have picked up a 'Scareware Malware' called Antivirus 2009. Started out a longtime ago as MS Antivirus. This malware will have the effect you describe also. The Restoration Disk will fix that. (Also suggest you use the Free version of Malwarebytes Anti-Malware from Cnet.com) Fourth, having the Model Name, and Model Number of your HP computer, would help tremendously. (Example: HP Pavilion a6240n. {Fictitious model number)

  • marios basileiou
    marios basileiou May 11, 2010

    Did you try Last Good Configuration? (In the area where you tell it to
    start up in Safe Mode).

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Disconnect all the cables from the sys and press and hold down the power button for about 30 seconds.
turn on the sys and keep tapping the F10 key on the keyboard to boot to BIOS and set it to defaults. Restart the sys
If this doesnt work out than you need to disconnect all cables from the system and open the chasis.Reseat the RAM , VEDIO card and the cables for the HDD.
Close the chasis and connect all the cables back in their place.
Try turning on the sys if it doesnt turn on that means the system has an hardware issue and needs hardware repair

Posted on Feb 12, 2010

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