To prolong the life of your ssd, use a hdd for AH/Beta. You can install it where ever you want to, but there's known issues in certain locations.
I believe the Beta will "default" your graphics settings. I've been using the same settings since early Alpha so my memory may fail... IIRC you also can reset the video settings by deleting the "video8.cfg" file in the settings folder of the Beta (works for AH2, too, if needed)