How to remove Dell Latitude E6420 BIOS password
During laptop booting, press F2 enter BIOS setup interface. Click the "Unlock" button and write down the serial number on the screen (it is case sensitive number), type the string to http://www.bios-pw.com/ and "Get password". Use the one generated by serial number and type it in on the laptop, NOTICE AFTER TYPE IN, PRESS "CTRL+ENTER" and this super password will clear current password. The idea is most of modern hardware has a builtin backdoor to allow a pre-define super password to overwritten existing one, Err... Sounds very interesting :D. Hopefully this is for users' convenience. By any means it is way better than Apple's total lock-down philosophy.
Learn something new everyday!
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