16 GB Kingston Datatraveler USB thumb drive, only 49 MB Usable

Quadzilla

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Hello,
I just started having problems with my 16 GB Kingston Datatraveler USB thumb drive. The drive is around 4 years old and was working fine until yesterday when I transferred some videos to it (from my Windows 7 PC), right clicked the drive in Windows Explorer and clicked eject. I then plugged the drive into my Sony Blu-ray player hoping to play the videos but got an error from the player that the drive was unrecognized. When I plugged the USB drive back into my PC, it recognized it but only as a 49 meg drive. Disk management lists the drive as Disc 7, Removable, 14.46 GB, Online, with 3 partitions which are listed as (L:) 49 MB NTFS, Healthy (primary partition), the 2nd partition as 99 MB, Healthy (EFI system partition) with no drive letter and the 3rd partition as 14.32 GB unallocated. When I right clicked the unallocated space, the only clickable options I see are Properties and Help, all the others are grayed out and can't be clicked. I also changed the Removal Policy a couple of times but that didn't help.

I attached the same drive to my Windows 7 laptop and was having the same problems. I'm wondering what the problem might be and if there's any way to get this drive working again so I can access the unallocated space? I know thumb drives are inexpensive but I'd still like to be able to use this drive if I can. Thanks for any info you all can provide!
 

My Computer My Computer

At a glance

Windows 7 Proffessional 64-biti 712 GB tape
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Dell XPS
OS
Windows 7 Proffessional 64-bit
CPU
i 7
Memory
12 GB tape
Post a screenshot from disk Management so we can see
 

My Computer My Computer

At a glance

win 8 32 bit
Computer type
PC/Desktop
OS
win 8 32 bit
here you go, thanks...
 

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My Computer My Computer

At a glance

Windows 7 Proffessional 64-biti 712 GB tape
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Dell XPS
OS
Windows 7 Proffessional 64-bit
CPU
i 7
Memory
12 GB tape
If you delete the efi parition can you create then failing that Use diskpart clean to wipe the drive then it should work
 

My Computer My Computer

At a glance

win 8 32 bit
Computer type
PC/Desktop
OS
win 8 32 bit

My Computer My Computer

At a glance

Windows 7x64 Home Premium SP1Intel i7 2600kG.Skill Ripjaws (DDR3-1600) 2x4GBNvidia GeForce GTS 450; Intel HD Graphics 300...
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Own build
OS
Windows 7x64 Home Premium SP1
CPU
Intel i7 2600k
Motherboard
ASUS P8Z68 Deluxe
Memory
G.Skill Ripjaws (DDR3-1600) 2x4GB
Graphics Card(s)
Nvidia GeForce GTS 450; Intel HD Graphics 3000(GT2+)
Monitor(s) Displays
Dell Ultrasharp IPS panel U2311H, Samsung SyncMaster P2350
Screen Resolution
1920x1080
Hard Drives
Samsung 850 Pro SSD 256GB, Samsung SSD 840 120GB, Seagates 1TB Barracuda ST31000528AS x2
PSU
Seasonic M12II 520W
Case
Lian Li Lancool PC-K60
Cooling
Case: 1x120mm, 3x140mm CPU: Hyper 212+
Keyboard
Logitech MK520 (wireless)
Mouse
Logitech MK520
Internet Speed
6-7 Mbps
Antivirus
Norton Security Premium, Malwarebytes on 2 (MSE on 3rd PC)
Browser
FireFox
Other Info
Audio: Logitech Z523 2.1
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