So i want to install Yosemite but I'm getting the following error I follow instructions and don't have the options button available to click Here are my drives. windows 7 (NTFS) MacOS (MacOS extended journaled) extra partition 8gig (MS-DOS Fat) think i used this to boot windows HOW DO I SAFELY AND PROPERLY BACKUP THIS COMPUTER? I know how to save files onto a hard drive. Best comparison of what i want is how when you restore your iPhone after backing it up you get all your settings, photos, apps, etc in the same way that you left them. what is the best way to do this for both my windows 7 bootcamp and mac. also can I get away with just doing the Mac drive somehow and converting it to GUID and installing the yosemite? what i don't understand if i delete/convert these drives to GUID will MacOS still run on it in order to open the yosemite install file? im so confused…. I have to much work on the windows 7 bootcamp I don't want to mess with it. but i also don't want to be stuck and unable to upgrade my OS over something this stupid.