Older home plywood floor

We bought a home built in the early 50's. Two bedrooms and two small bathrooms were added in the early 70s. When we bought the house, that side had a neutral beige carpet that looked ok but had some wrinkles. When I removed the carpet from an adjoining room, I saw the carpet in the addition was installed over an orange-brown indoor outdoor carpet glued to a plywood subfloor attached to the concrete floor. I pulled up the top carpet and the pad under it. I have no idea what to do now that I am faced with the ugly indoor / outdoor carpet attached to the plywood which is attached to the concrete. I pulled up some of the outdoor / indoor carpet. The foam split leaving me with plywood with black foam stuck to it. Any ideas? Thanks

 

You will need lots of patience and a scraper to remove the glued down carpet. Cut sections with a utility knife and scrape up.

 

I would demo the plywood and carpet all in one tear out. Plywood over concrete isn't the best idea, but hey, it was cheaper! I hope they used a moisture barrier between the concrete and the plywood!!! Can you say MOLD!