I used the archive and install method to upgrade my OS 10.1 system
to OS 10.2. I then started the laborious process of going through the
"Previous System" file to throw away unneeded files.
What a time-consuming chore it has turned out to be. I found that
most of the files I wanted to toss couldn't be thrown away unless I
changed permissions and I ended up having to do this one file at a time.
I tried changing folder permissions and clicking the "Apply to
enclosed items" button but it never worked. I tried selecting several
items and changing ...