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May be some of you still using (USB) floppy drives with Windows 7 ?

You want to upgrade to Windows 10 ?
May be this is interesting for you ...

Two driver files are necessary for it:
\windows\system32\drivers\sfloppy.sys and
\windows\system32\drivers\flpydisk.sys
extracted out of an existing/working Windows 7 installation (may work with Windows 8 also).

Additionally you need the description/installation files located in \windows\inf:
fdc.inf and
flpydisk.inf
(and perhaps also fdc.pnf and flpydisk.pnf).

These .inf files can be used to reinstall the fdc and floppy driver again, e.g. for a Windows 10 installation. At the moment I am not aware of offerings from Microsoft itself regarding the subject "floppy drive support". I've read they said only, go to your drive manufacturers pages and look for drivers.... good luck anyway for it.

Added a bit later: There is also a sample driver for a "super floppy", see https://github.com/Microsoft/Windows-driver-samples/tree/master/storage/sfloppy
To compile the driver, you need the Visual Studio Community 2015 and Windows Driver Kit (WDK) 10, offered at https://msdn.microsoft.com/en-us/windows/hardware/dn913721.aspx, also.