I have a new acer V5-531/571 with windows 8 given to me from friend that bought it for my roommate but he passed away last month. I don't have password to unlock it and have not been able to get an F key to pull up the BIOS screen. what is the best way to solve this without spending my hard earned money?
Most people would wipe and reinstall the OS unless you want to recover files.
the key is in the BIOS for new machines and should be read via the windows installer automatically.http://windows.microsoft.com/en-GB/windows-8/upgrade-product-key-only
but you will have to get any specific OEM changes directly from your OEM.
If the machine was setup to log onto a network controller, you can ask the network admin to reset your password. If the machine is logging onto a email account you would have to contact the email provider to get the password for that username.
if you just want to do a local logon, you will need the correct password. There are default accounts but there is no default password that anyone can give you to log on.
no point in explaining options unless you really need to recover data from the drive.