How to Remove Floppy Disk Drive in Windows Hyper-V Virtual Machine
Hyper-V enables running virtualized computer systems on top of a physical host. These virtualized systems (aka: guests) can be used and managed just as if they were physical computer systems, however they exist in a virtualized and isolated environment.
When you create a Windows virtual machine (VM) in Hyper-V, a floppy disk drive is created in the VM by default.
This tutorial will show you how to add or remove the default floppy disk drive in a Windows virtual machine created in Hyper-V.
You will need to be signed in as an administrator in the virtual machine to be able to add or remove the floppy disk drive.
Hyper-V is only available in the Window 8 Pro, Windows 8 Enterprise, Windows 10 Pro, Windows 10 Enterprise, and Windows 10 Education editions.
EXAMPLE: Before and after Floppy Disk Drive removed from Hyper-V virtual machine of Windows

Here's How:
1. Open the Windows virtual machine in Windows 8 or Windows 10 Hyper-V.
2. In the virtual machine, press the Win+R keys, type regedit, and press Enter to open Registry Editor.
3. Browse to the key location below in Registry Editor. (see screenshot below)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\flpydisk

4. Do step 5 (add) or step 6 (remove) below for what you would like to do.
5. To Add Floppy Disk Drive to a Windows Virtual Machine in Hyper-V
This is the default setting.
A) In the left pane of the
flpydisk key, double click/tap on the
Start DWORD to modify it. (see screenshot below)
B) Type
3, click/tap on
OK, and go to
step 7.

6. To Remove Floppy Disk Drive to a Windows Virtual Machine in Hyper-V
A) In the left pane of the
flpydisk key, double click/tap on the
Start DWORD to modify it. (see screenshot below)
B) Type
4, click/tap on
OK, and go to
step 7.

7. Close Registry Editor, and restart the virtual machine to apply.
That's it,
Shawn