Question about Acer Extensa 5420-5687 Notebook
The most common way is to remove the CMOS battery and leave it out for anything between 5 minutes to an hour then replace it and restart.
You will probably have to open up your laptop to get to the battery.
You may find some codes to put in but they very rarely work.
Posted on Jan 03, 2013
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Posted on Jan 02, 2017
SOURCE: forget bios password on laptop
you can bye pass the bios password by removing the hdd. then use an external hdd connector to connect it to another computer. then use partion magic or easus partition manager to delete the partion in the hdd.(leave it uncreated and unformarted).then put it back to your laptop and format it without selecting the boot order. for more mail to email@example.com
Posted on Sep 10, 2010
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