Forgotten/lost password

Hi hope someone can help with my issue please, i have had my book live drive now for several years and I have recently purchased a new laptop and now I need to set up on new laptop but keeps asking for owners password and I dont know what I set it as, or where i wrote it down either just wonder if I could reset the drive without losing any of my saved stuff. Many thanks in advance for any help.

p.s.  Im not good with tech so simple step by step instructions would be great.

There is an user’s manual for online at the WD website. It tells you exactly what to do in your situation.