I just recently upgraded my harddrive inside my MacBook Pro and I put my old hard drive in an external enclosure. Everything that is on that external enclosure now is just my old Mac hard drive, applications, etc. I wanted to delete some programs off of it to create some space for larger files to store but keep the file system intact just in case something goes wrong with my Macbook Pro and have to send it in for repairs with the original hard drive. So, 1st question is, can I delete applications off of it without any problems if I have to reinstall the hard drive? 2nd question is can I just put everything from the original hard drive in a folder named "original HD" to make organization better?