I have a hp 5750 with this power-on password that no one seems to know or even how it got there i have pulled the battery and power cord left it for 5-10 min and reinstall it and the date at bottom of power on password screen has reset to 00/00/00 but the password is still there i have tried the backdoor passwords from list on the net with no progress is there anything else i can try i have access to a live backtrack disk but don't know if it can hack a bios password need a little help if anyone can
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if you dont know the password then the only way to reset it is to find where the cmos battery is on the motherboard, Some are under a plastic plate under the battery, some are underneath the memory door. some are under the keyboard. but you are looking at removing that battery (button cell, watch type) and take a metal item and short out the pins on the battery holder for 10 seconds. Reinstall the battery and reassemble. This will delete the bios password and restore it to default Hope this helps Roger
there are no web site.tiger and other compamys have other people make up systems at low cost to sale. just like gateway hp emahine you will have to buy a power supply if you see it to work sorry to say that but some of us do not like that companys do that. i build i know that to be true jim
The simplest way to remove a BIOS password is to simply remove the CMOS
battery. A computer will remember its settings and keep the time even
when it is turned off and unplugged because these parts are powered by
small battery inside the computer called a CMOS battery. If we pull out
this battery, the computer will forget alot of its hardware settings,
including its BIOS password.
What password do you want to remove? Is this a windows password or a bios password? If bios, you need to know the password and then enter the bios on boot up. I'm not sure on compaq's, typically it's either escape or delete keys as it's booting. Sometimes before you can even see the screen. Once in look through the options and it should be there. If windows, what version of windows.
The power on password is a little harder to break in laptops than desktops and this tip may or may not help. Each computer manufacturer is different in how they set thier systems up. Disassemble the laptop down to the chassis where the RTC battery can be seen in its socket. Make sure that all power is removed from this device and remove the RTC battery. Let the motherboard sit without the battery in it for up to one hour. replace the RTC battery and reassemble the laptop. Do not put the main system battery in just yet, power on only with the AC adapter. Power the laptop up and if it asks for a password, just hit enter, if it still asks you for a password, type in "clear". If it still wants a password, then the only other option is to "short" the two contacts in the battery socket for the RTC battery, using a small wire to jump the positive and negative points in the socket, make sure nothing else is touched or you will Nuke your motherboard. With the battery contacts "shorted" power the motherboard up with the AC adapter, wait approx 1-2 minutes allowing the motherboard to post. Shut the board down, and follow the previos procedures for reassembly and powerup.
here are 2 password type first 1 is bios password if tell me about your bios password it prompt when u powerup follow procedure below
For that you need to reset factory defaults settings for bios. For reset bios u have to open back side of your laptop then u find motherbord circuit there. pull cmos cell on motherbord for 15 minute then it reset to defaults. Also u can reset with jumper settigns read carefully on mother bord there is 1 jumper near cmos cell u read there " bios reset or clear" It is on 1-2 position right now set it in 2-3 position then power up then all bios settings are reset. then again set it in 1-2 its original position. Then it not want password.
And if u tell about windows password Then when you power up the computer press F8 key then enter in safe mode then wait until it prompt for user passsword
then enter in administrator then if u able to enter then reset your password. But if u set and forgot default administrator password then u should need winxp recovery disk. Please rate me . Thanks .
Removing CMOS battery resets BIOS password. CMOS battery is located right beneath the keyboard. Turn laptop upside down and unscrew the topmost layer at the centre, beneath keyboard. U shud see CMOS battery silver. REmove, hold for abut 1min, reinsert, powerup ang enjoy!!1