I've always had bad luck when upgrading from one OS to a newer one. So, I have followed advice from a number of people, and created a partition where I have installed Yosemite to test it before abandoning my old Mountain Lion. However, now I don't have access to my apps, so how can I test Yosemite? Is there a way to access to the apps on my HD drive from the new partition? I've considered using Migration Assistant, but that seems to want to move things from the old partition to the new one. I don't want to move anything, in case I decide I want to keep on using Mountain Lion. Thanks!