Thanks Mike and Matt. There are files such as tutorials and other stuff that I don't think are necessary to run the BIAB program. I don't know what will happen to these unnecessary files during the upgrade process. Since space is, at least for the near future, a premium on the smaller SSDs I'd like to manually remove some of them if they won't be deleted during the upgrade process. Of course I don't want to fubar anything if the upgrade needs a fully installed program to upgrade. Wondering if it would be safe or prudent to remove some of the extraneous stuff.