I had a very bad experience with a USB portable drive that I purchased and “quick formated” to NTFS. I believe this is equilant to convert/FS:NTFS. It was unstable and made a habit of going off line from time to time. Then one day it just quit. Did not show up as a drive in “My Computer”.
I restored it with Restore 2000 software and copied the contents to a different drive. I then reformatted (the slow way) the orig USB portable drive to NTFS and it has been stable and usable ever since.
I think the problem with the quick format is that it doesn’t detect and mask bad sectors.
I use several USB external HDDs and I take the time to completely format them to NTFS before I use them in my system.
Of course, I’m paranoid and that may explain some of my issues.