I inadvertently - being a new poster - did not remove the "resolved" "prefix" prior to posting. I did not know about it basically. The response from CoastalOR raised a flag I needed to "unresolve" the post. Figured it out so here we are again! ORIGINAL POSTING/QUESTION I have not started this yet since i am cleaning up my 2006 iMAC prior to transfer. I am not going to use Migration Asst. due to recommendations from sons who are both experienced Mac users. SO, I will be transferring files either through Thunderbolt / Ethernet / or Firewire (I purchased a OWC Thunderbolt 2 dock). Several have recommended using ethernet. I do have a Time machine backup drive but I do not want to use it as the source. There are some issues I have been cleaning up slowly. OK, so regardless of the "vehicle" I have a few questions on how the transfer works with respect to applications. Though a long time OSX/Mac user I am not into all the details of technology / software. Am I better transferring "everything" on my existing iMAC over to the MB Pro - applications, music, photos, MS Office files, etc. or just applications first and then cherry=pick other files I want to? If I transfer all applications over what happens with my iPhoto application when it comes over to the Yosemite MB? Do I now have both? Won't that "mess me up" and causes issues? Does transferring applications also require one to transfer "associated" files in other folders besides "application folder"? I would assume that once I transfer an application over to the new MB the application is no longer "active' in the iMAC. Correct? I have more questions but these are the key. Thanks in advance for your assistance.