HP 15.6" AMD A8 Quad-Core Touch Laptop

What is the maximum amount of RAM you can put in this laptop?

Assuming its using lpddr3, the max supported should be 16gb.

Was this upgraded to windows 10? Could I roll it back to windows 7 easy? I would like to use it for business purpose that requires windows 7.

According to the maintenance and service manual at HP’s support page, it says 8gb.

These came stock with Windows 10.

ETA: You’re on your own if you wish to install W7 on this. Do note that not all manufacturers release proper drivers for older operating systems, so you will want to research first.

Why was this laptop refurbished? N does it heat up easy? HP laptops do that often

We don’t have information on why each laptop was refurbished. Sorry.