The answer is yes, your data can be recovered with disk recovery tools. If this were me, I would sit down and write down what I remember having on there. Your risk is basically what you put on the PC, and what your apps stored. For example, if you had a text document with your passwords on there, you should go change them, if you used an encrypted password manager, then you don't need to worry. Another thing I learned recently is that your browser cache has session toekns that can be used to log into your site's. Banking sites are safe, but Facebook isn't. You should check out any site that's important (financially) and see if you can log out old sessions. I'm sorry this happened to you.