I'm looking for the driver for nec model uf0002 usb floppy disk drive unit,I have WindowsXP Service Pack3.

From the issue description, I understand that external floppy drive does not recognize in Windows 8.
I will certainly help you with this issue.
1. What is the make and model of your computer?
2. What is the make and model of your floppy drive?
3. Are you getting any error message?
4. Were there any changes made to the computer prior to the issue?
Please follow the methods.
Method 1:
Run the troubleshooter and check.
a) Press the 'Windows + C' to activate the charms menu or move the mouse pointer to bottom right corner of the screen and you will get the charms menu.
b) Click on 'search' and select 'settings' and type 'Troubleshooting' and select 'troubleshooting'.
c) Click on 'Hardware and Sound' and select 'Hardware and Devices' and click on next to run the troubleshooter.
Method 2:
Please visit the manufacturer website of the device to install the latest drivers and check.

Since it is a USB device, does Windows 98 automatically load the device-driver when it is connected? If not, connect to the Internet, and run Windows Update (http://windowsupdate.microsoft.com) and let it scan for updates. When it completes, look at the "optional" updates -- there may be a device-driver that can be downloaded.

The LS-120 (also known as the SuperDisk) is a type of floppy disk drive that was popular in the late 1990s and early 2000s. It is a high-capacity floppy disk drive that is capable of reading and writing to both standard 1.44 MB floppy disks and its own proprietary 120 MB SuperDisks.
If you are looking for a driver for an LS-120 floppy disk drive, it is likely that you will need to use a driver specifically designed for this type of drive. The driver will allow your computer to recognize and communicate with the LS-120 drive, allowing you to read and write to floppy disks using the drive.
To find a driver for an LS-120 floppy disk drive, you may want to check the manufacturer's website or search online for a driver specifically designed for this type of drive. Some common manufacturers of LS-120 drives include Iomega, Mitsubishi, and NEC.
I hope this information is helpful! Let me know if you have any other questions.

I too am having a problem with the Sabrent floppy drive.
I'm running a windows 7, 64bit system, everything installed ok,
but I kept getting a "install disk" message every time I tried to
access the drive. (I did have a disk installed.)
Any thoughts?
Thanks

You shouldn't need one. You PC bios should pick up the drive when you turn your PC on.

Look in "My Computer" the floppy should be listed there.

Floppies only hold about 1.44 Mb of data Its worth mentioning that these drives are more or less obsolete now, flash/USB drive hold much more data, more now than CD's (700Mb) and
DVD's (4.7 Gb) and now with SD card usb adaptors almost as much as Blueray disks (25 Gb)

Your TEAC FDD (floppy disk drive) is a Tri-mode device (720 KB, 1.2 MB, and 1.44MB)

The "235" part of the model number indicates the drive's form factor (size) is 3.5 inches.
The "HG" part of the model number indicates that the FDD is a Tri-mode device, with the 3 modes
given above.

The manufacturer notes that it has no jumpers, but every FDD I've ever seen has jumpers for
bus master/slave selection. Either master or slave will work.

Here's the manufacturer's web site URL for your TEAC floppy disk drive:
http://www.teac.com/DSPD/support/floppy_drives/fd235hg_id_your_drive.htm

Here's the info on the NEC FD 1137C drive:
--------------------------------------------------------------
Enclosure Type Internal
Interface Floppy (IDC)
Platform: PC
Technical Features Capacity 1.44 MB,2.8MB,360MB,720KB,1MB,640KB
Minimum System Requirements:
Operating System Microsoft DOS • Microsoft Windows 3.1 • Microsoft Windows 95 • Microsoft Windows NT
Form Factor: 3.5" floppy disk drive

Here's the best info I found on your NEC FD 1137C Floppy disk drive:
http://www.aliexpress.com/fm-store/602209/210081532-394871196/NEC1137C-DATE1992-floppy-Adaptive-720K-1-44M-120M-Capacity-120M-40PIN-Interface-3PIN-Jumper-FD1137C-NEC1137C.html

You should not have to have a floppy disk driver as the machine (IBM format) recognizes the floppy drive upon boot up. Go into your BIOS setup and be sure that the floppy drive is turned on. It is always recognized as Drive A: or Drive B: Those two designations is reserved for floppy drives in the Basic Input Output System, reguardless if your machine came with an attached FloppyDrive.

have you try to download the driver from this link ?
http://www.bestdrv.com/samsung_sfd_321u_ep_driver_83033.htm

Did it work before?

If yes, then it died.

If no, then replace it.

Try Formatting using MS Dos : http://www.computerhope.com/formathl.htm Good Luck