Removing stubborn Thinset

Removing very hard (white) Thinset from a wood subfloor (bathroom).
Removing enough to make the floor even, no bumps.
Remove vinyl flooring. stick and glue type
• Remove vinyl flooring....
Disclaimer: for illustration purposes only. If you like what you see, then great. Please give a thumbs up. If not, then you know what not, to do.