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Repair and disassembly guides for the Compaq Presario CQ40.

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Forgot boot up password

How do I get past the boot up password

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by boot up password I'm presuming you mean the Firmware password, that you have to enter before it turns on. is that correct?

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I found this: https://h30434.www3.hp.com/t5/Notebook-B...

it looks like you can try one of these two passwords: 47498324 or 00586459

according to an HP employee:

1. Use the unlock code posted above to enter the BIOS

2. Disable all passwords that are enabled

3. If asked for current password - type the unlock code

4. For new password, just press ENTER key

5. Repeat the same for verify password column.

6. Then leave the BIOS by saving & exit option to save the changes.

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