Hi, got in a old macbook pro (2010) the client did a upgrade and now its stuck in a boot loop at login screen. I booted to recovery and backed up his user folder and then tried to do a reinstall, it goes online to download yosemite then when I start the install I'm prompted for apple id and password, I click "forgot" and the little wheel just spins.... is there a way around this apart from doing a clean install?