hi. Was wondering if there is someone out there with a Yosemite file that I can use to restore my system. The keyboard and trackpad to my 2013 MacBook Air stopped working and I even posted here asking for help (http://mybroadband.co.za/vb/showthr...ot-working?p=14881830&highlight=#post14881830 ) and after doing a diagnostics test the sys told me there was nothing wrong with my hardware and both keyboard and trackpad worked in diagnostics mode so I have figured out it's an OS thing hence the need to reinstall but the store keeps giving me an error message when I try to download Yosemite and keeps referring me to the Purchases page which isn't helping. So for now my first option is to do a clean installation and see if that will solve the problem.