I have 1TB ext drive (partitioned into two drives) that I have been using with my MAC OS 10.5.8 for a few years now, it's hardly ever been used as it was my second back up. I analysed in using Puran and it's pretty tidy. I now want to start using it as a back up hard drive with Win 7 and since I originally formatted it on my MAC as FAT32 it seems to work fine.
My question is, would I be better reformatting it to NTFS now I am using it with Windows 7, or just leave it as it is? Apart from the obvious where I can use it with both platforms what are the advantages and disadvantages?
My main concern is reliability. If it has been pretty much hardly used since I filled it with data would it be better to reformat and resave everything again, or could I just run some disk check on it to test for corrupt data?