Having problems with your HP Compaq Presario C500t Notebook ?

Power-on password I cant get to windows because I forgot my power on password and now it wont even let me go into f10.


Answers :

Computers that have been setup with a power on password are virtually impossible to guess if you have forgotten the password.
Password\015\012protection is setup to prevent people accessing the computer without\015\012authorisation. There are no backdoor passwords you can use to get in.

Password\015\012protection is usually set up on two levels, first on boot up and second\015\012it may also include a password on the hard drive. This is to prevent\015\012the hard drive being taken out of a computer and inserting into another\015\012(it won't work in another computer).

If the password is saved in\015\012the BIOS then it is possible to remove the password by removing the\015\012BIOS battery for 1/2 + hour, then reinsert the battery and configure\015\012the BIOS again with the date. time, etc. and allow to to boot up into\015\012Windows.
Laptops such as IBM Thinkpads, Compaqs use a EEPROM chip to\015\012store these passwords and removing the BIOS battery won't work. If you\015\012are skilled electronically, you can build a piece of hardware and with\015\012a program read the contents of the EEPROM to identify the password,\015\012then use this password to get into the computer and then if you can\015\012remove the power up password and/or hard disk password or change them.
\015\012For information on password hacks go to www.allservice.ro/forum
Remove cover for ram underneath and you will see the wireless module. Remove the two screws for this and you will find the cmos battery under this. You will only have to remove 3 screw in total and the wireless module. Replace battery after a minute and power on password will be gone.
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