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I have a USB flash drive that I know has ~32 GB capacity:
Kingston Digital 32GB USB 3.0 DataTraveler (DTR30G2/32GB). I purchased it 2 years ago and have been using it in the FAT32 file system. For 2 years it has had 32 GB capacity.
Today, however, Windows 7 says the flash drive is empty and that its capacity is only ~200 MB. Since I only ever use the flash drive to transfer data between computers, and not to archive data, losing the data is no problem. But I do want its full capacity!
So, I reformatted it using Windows 7. But even after reformatting, Windows still shows its capacity as 200 MB. I reformatted both with and without the Quick Format option, but the outcome is the same -- its capacity is only 200 MB.
As a test, I tried to copy ~400 MB of files to the flash drive (in case Windows was only displaying the incorrect capacity), but Windows will not let me:
Finally, I connected the flash drive to a different laptop -- a MacBook Pro (since FAT32 is compatible with Windows and Mac) -- but OS X too says it is 200 MB, even after I reformat it on that machine.
Does all of this indicate that the flash drive is "dead"? Is there anything else I can try in order to save it?
Thanks. How do I find diskmgmt.msc on the flash drive? – Andrew – 2018-01-16T22:34:15.753
It's an internal program for setting up a new internal HDD or USB HDD. You can find it in the search bar of the start menu. Afterwards, you can right click on your usb drive and select "New Simple Volume". It won't have a drive letter or any partitions on it or be used at all. – Nasir Riley – 2018-01-16T22:46:24.073