I have recently got a new macbook pro of which I got running via a time machine restore from the backup of my previous macbook pro. When I tried to open and enter the license key for some of my apps, they came up invalid, it has always worked before. It seems some apps require deactivation before installing on a new mac, problem was I had sold the mac they were previously installed on, and I just wiped its hard drive without going through and uninstalling all the apps by hand. is there a way of doing a multiple deactivate of software on a computer before selling? or does one have to tediously go through every app? to add to the hassle, apps have different restrictions as well, some don't need deactivation, some do.