Zdroj:http://www.tech-faq.com/acer-bios-password.shtmlResetting an Acer BIOS Password Using Hardware
If you cannot boot the Acer and don't want to send your computer back to Acer for an unknown amount of time, you can try to reset the BIOS password via hardware.
Tech FAQ Forum members have reported that they were able to remove their Acer BIOS passwords by simply opening their notebooks and removing the CMOS batteries for 30 minutes.
Takže pokud to z něj nevymlátíš (osobně bych se přimlouval použít tento způsob co nejdéle) tak zbývá zkusit rozmontovat notebook, vyndat baterii ze zákl. desky, počkat půl hodiny a pak se to možná podaří.