Ok..
I borrowed floppy drive from my friend, mainly because I want to flash BIOS of my computer.
I put it in, connected the power and floppy connectors.
Turn on my computer and loged into my account..
But Windows do not show that drive A is there..
And it also can't read any floppy disks..
Does anyone know what can be wrong?
Why this floppy drive doesn't working?
Floppy (drive A) is not seen by Windows 
Linear Mode
