I don't have much experience with Macs of this vintage. Got a free MacBook Pro, Early 2011, with specs as follows (from Apple serial number info.com) 2.7Ghz Sandy Bridge 4GB RAM Intel HD 3000 graphics Laptop is in good shape, and appears to take/hold a charge. Only problem: it's password locked from the prior owner. I would like to put an SSD in and repurpose this for my kids. I plan on keeping it up to date with the latest macOS. Do I need to hunt down a Snow Leopard disc in order to format/restore? Any tips on upgrading the HDD to SSD (250GB is fine) and RAM is appreciated. Meaning, I know how to pull apart and replace/update these items, I'm just looking for suggestions on which particular hardware will be a good fit for this model. I also will never use the DVD slot, so tips on re-purposing that are appreciated as well. Thanks!