Sober today ! Did you guys know sparkling cider tastes way better than wine ? ! Lol <| sep |> I really more wanted to sell the Surface , I ' m still actively using the XPS , but make a reasonable offer and I ' ll see ? <| sep |> couple things 1 Easiest boot into target mode by holding the T key , connect your current mac to another mac via firewirethunderbolt the second mac the full computer being the first can now browse your first computers hard drive , delete some files you don ' t need or move them over to clear space . remember to empty trash after deleting files from first mac . 2 more challenging remove the hard drive from your first mac , plug it into an external drivebay and clear some space off of it this should only be done if you have technical experience , step 1 is pretty simpleeasy . If your computer doesn ' t have a removable hard drive you ' re stuck with option 1 , or a format , I prefer option 1 edit couple additions to option 2