FuzzyYellow I will for sure use about 100GB of a 128GB SSD. is it good to run an sad that full? Jambls It is fine. August 15, 2015 ALXAndy Just run disk cleanup once in a while to get rid of shite and if you are using Win 7 don't forget to delete Hiberfil.sys August 15, 2015 FuzzyYellow it's for my macbook. I haven't bought it yet, but i'm debating between a 240GB SSD, or a 120GB SSD and 4 more GB of RAM. August 15, 2015 ALXAndy 100gb for Yosemite? are you having a laugh?!?!? I used a 60gb SSD it took up about 20. Can you not have two drives in it? if not get a external. Or rather get a shell for your existing drive and use it for external storage and apps etc. August 15, 2015 FuzzyYellow no, I'm not having a laugh... Yosemite is taking about 60ish on my system right now. August 16, 2015