We are not aware of any virus that would play the song "Fur Elise".
However, some PC motherboards play this tune when there is a hardware
problem. Check your motherboard manual.
For more info, see the homepage of Diamond Flower Instrument:
Damage Free Intelligence (D.F.I.) is a feature we have added
to our newer motherboards to warn users of some classes of
hardware related problems. It is a warning system on the
motherboard that plays a warning tune if certain hardware
problems are detected.
Some users hear strange music coming out of the PC speaker and
think they have been hit by a virus - they scan the hard drive
multiple times and reformat it, but it just will not go away.
The user now thinks that they have been infected by a virus
that no virus scanning software can detect today. This is not
the case at all.
The standard alarm/tune/music that they may hear is a
variation on "Fur Elise." Our production motherboards use this
tune whereas pre-production/prototype boards may use other
There are three main sets of reasons that the alarm/tune is
playing - Processor, Heatsink/Fan and Power Supply related.