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My computer goes to black screen with flashing cursor in upper left corner. does this mean i need to reformat my harddrive and reinstall windows? i didn't install anything new i just rebooted the computer and got the black screen


Answers :

Wen yu power up press F2 or F1 or 'del' key to enter in bios check your harddisk is detected in bios.
Open cpu cover and refix RAM memory and reconect power cable and sata or ide cable to harddisk again.
then ceck.

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