How do I download more than one copy of OS X YOSEMITE
I am running Yosemite 10.10.3 and downloaded another copy so as to make a bootable USB drive in case I ever crashed.
Unfortunately that copy was corrupt, I removed it from my applications folder and restarted my machine but when I went into MY PURCHASES at the APP STORE it said DOWNLOADED and would not let me download again.
Is there anyway I can get another copy.
iMac (27-inch Mid 2011), OS X Yosemite (10.10.3)