I upgraded to an SSD on an OS 10.7 2009 MacBook Pro, reinstalled Lion via a USB and the other software from a Time Machine backup. Office for Mac 2011 refuses to function on the SSD: the error message says the installation did not complete owing to a problem with the installer. It is a 100% legit version purchased online, but I don't have the option of re-downloading it from scratch. I have the working original on the hard disc outside the machine. Is there a method for transferring it to the SSD in working order?