I've had the same problem with my stuff, I managed to get around it by getting the person with the admin password to leave the desktop up, installing it then copying the files onto my USB, it's worked so far but only on the non-admin user for that comp. You could also try setting up an OS on your usb and then installing the Aurora files to that, I have linux on mine so i haven't been able to install but if you can find and copy a windows os lite and switch it onto your usb it might work.