How can I find unlink the missing files in my project

When I click ‘find missing files’ in Blender, i get a list of a couple of textures that are missing.

I have no idea where these file are supposed to be on my PC, and searching for them via explorer is not giving me results.

What is the best way for me to find where these images are on my computer? And… how can I find where these images are used/missing in my project… Like how can i find the material that is ‘using’ them? So i can unlink them (cause im not using them)

I tend to just go into orphan data in the outliner. I recommend the Orphan Slayer addon, it’s ideal in this situation, though only for 2.79 as far as I’m aware.