Acer travelmate x finger and bios problems

hi guys hope someone can help or this old thing is going in bin, my daughter is going to uni and i said she could have my lappy as a back up from her mac and ipad just in case something dont work on them and needs a windows base OS but about four years ago i set up a bios password and finger ID but now and ive been trying for a few day remember the password and my print has changed as it to dont remember my finger ? is there any way of deleting my bios protection ?

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