Used laptop recovery

I have a computer from a remote work job that the employer did not want returned. It’s a Dell latitude 7490. The employer was a big company and I’m sure they have fairly sophisticated security on the computer. It’s been almost two years so I don’t remember the sign on credentials. I just want to wipe it clean and start fresh. It has an I7 chip so I figured it was worth getting some kind of possible use out of it or using it as a reader or something. Any suggestions for a regular user or is this something for a computer shop to do?