Forgot Master password on W10 machine. Solutions?

After liking what I heard about using a master password, esp. when using a dated OS like W7, I created a MP. I then stepped over to my W10 machine and did the same. A few days later I tired of the MP popup, and decided to remove passwords for financial sites, etc., and just leave the saved passwords in my browser. A week later I went to my W10 machine and the MP query popped up. I couldn't, and can't remember, the last 3 characters of my MP.

Is it possible to reset the MP without the MP? I don't care about losing the stored passwords that are on the W10 machine. I'll deal with them individually. Help? Thanks.