Can I use an old floppy disc motor to make a small wind turbine for my solor lights? or an old hard drive motor ?

I want to put some propellers on a PC fan motor or an old floppy drive motor and make free electricity, enough to charge my garden solar lights.

I have tried connecting leds to an old printer motor and spinning it, the back emf lights the led for a second.

spinning the other way lights the other led in reverse polarity to the first....

My problem is that the motor would continue to spin in the same direction in the wind...only generating electricity for a split second........

Pleeeaaaase help me!