Wont boot - asking for a dos p/w which I did not setup

[sherylrodgers]

Toshiba L655 , windows 10 / out of the blue it started asking for a DOS password (blue screen )which I have never set up in bios so cannot get past this request to boot up.

 

[ex_bubblehead]

Sorry, no help with passwords. We have no way to verify that you are authorized to access the computer in question.

http/www.tomshardware.com/forum/id-2317969/read-passwords-lock-codes-pin-numbers.html