I acquired an external hard drive that came preformatted with NTFS. My MAC quietly mounted it read only. After some conversations with google, I discovered that MAC couldn't write NTFS by default, but actually did have the ability to write NTFS on Lion
I think Lion < 10.9.5
So is it possible to use this drive on 10.9.5 without reformatting ? And will it be possible to read the results on (currently existing) OS X variants >= El Capitan (=? 10.11.0)
And if I do need to reformat, what's the least-likely-to-be-broken choice of file systems?
And if 10.9.5 can write to NTFS, how do I enable it? Will option 3 from http://www.howtogeek.com/236055/how-to-write-to-ntfs-drives-on-a-mac/ work on 10.9.5?