Password at boot screen.

25 pts.
Tags:
BIOS password
Microsoft Windows XP
Password
I came home this evening to be confronted with my son asking about my password for my laptop. I have never used a password of any type. I tried booting it as soon as it passes the first boot screen it asks for a password.  Blue screen ten digits. I downloaded the manufactures passwords and some common back doors (CMOS BIOS Et al) but to no Joy. It will allow you to ask three time then it says system disabled.

The machine is a Compaq Presario V2000 running on XP.

Anybody know a solution that does not cost an arm and a leg?

Software/Hardware used:
Compaq Presario V2000

Answer Wiki

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There usually is a way to reset bios passwords, but this information is usually available only in technical repair/maintenance manuals which might or might not be available on the Net. If you have some kind of a service contract just ask the technical support for advice.

The other possibility (I think I’ve run into this with some older Thinkpads) is that the firmware thinks the configuration has changed (caused by a flaky contact or some interference) and the change needs to be confirmed in BIOS. In this case one would assume that the default password would work…

Third possibility that comes to my mind is that some program has changed the BIOS settings (I assume this laptop has modern flash bios where this would be possible). It might be some malware or it might be someone who did something that s/he did not understand.

Edit: After a little searching, it seems that there is a “Compaq Presario V2600 Notebook PC – Maintenance and Service Guide” available in which there are instructions how to remove the RTC battery. Removing that might cause the CMOS to reset to it’s defaults and thus get you rid of the password. Then again it might not, I’ve never done this to any Compaq product.

Removing the battery won’t do it, get a master bios password at bios-unlock.com that 10 digit code is the key.

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  • Broosterb1
    No good, can not get to the windows screen. This password is at the BIOS level. the Computer boots to Bios but no farther. I have tried interrupting to get into the bios startup screen or to get Safe mode but the password interrups this process.
    25 pointsBadges:
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  • Gabe9527
    What type of Laptop is it? This may effect how it will be done
    11,005 pointsBadges:
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  • Broosterb1
    compaq presario V2000 running on XP.
    25 pointsBadges:
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  • Gabe9527
    found this:... http://www.fixya.com/support/t578878-forgot_bios_password 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power cord. 4. Remove the battery pack by following these steps: a. Turn the computer upside down with the front panel toward you. b. Slide and hold the battery release latch 1 to the left. (The front edge of the battery pack disengages from the computer.) c. Lift the front edge of the battery pack 2 and swing it back. d. Remove the battery pack. 5. Remove the RTC battery from the socket on the system board. 6. Wait approximately 5 minutes. 7. Replace the RTC battery and reassemble the computer. 8. Connect AC power to the computer. Do not reinsert any battery packs at this time. 9. Turn on the computer. All passwords and all CMOS settings have been cleared.
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  • Gabe9527
    Something like this could help..... http://www.cgsecurity.org/wiki/CmosPwd
    11,005 pointsBadges:
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  • ITbank
    please any one help me i need reset mother board.need bios password under mention machine
    Toshiba Mother Board model     FHZSY1......A5A000672

    Toshiba Satellite A10 Model no PSA10E-01V7Z-AR
    10 pointsBadges:
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  • TomLiotta
    The problem that we have is that we have no way to know if you own the laptop or if you have the right to disable a BIOS password. The proper answer is to take it to a computer repair shop and have them do it. -- Tom
    125,585 pointsBadges:
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