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annie90

macrumors member
Original poster
Mar 23, 2012
67
1
Hi Guys,

I have a 32gb USB drive that is formatted to MS-DOS(FAT) as I want to be able to use it with both mac and window. I use in primarily for college stuff so that I can work on stuff without having to bring my laptop to college. It worked find of the last few year while I was studying for my undergraduate degree, now I go to a different college to study for a postgrad. In the new college when i plug it into the windows computer,s I keep getting told that it needs to be reformatted to work. I've wiped it and reformatted it again to MS-DOS(FAT) but I keeping getting the same issue. It all works fine on the mac

Would any of you have any ideas ?
Help would be much appreciated
 
You need to format it using Disk Utility and by choosing the drive itself rather than the partition.

Like this:

Screen Shot 2016-10-08 at 1.08.45 PM.png


Screen Shot 2016-10-08 at 1.08.50 PM.png


You see the difference? In the first picture the DRIVE itself is selected, which is the proper way to do it; in the second picture, only the partition is selected, which might not work well for you.
 
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