HELLO WIN, or Chinese UFO made of Stone

The system Windows XP by Bill Geitz, MicroSoft, is very often UNEXPLANABLY mistaken or mysterious one. May be the devil is inside the computer or the helloween is coming soon?
In the picture below there is an UFO from CHINA , Dzyansee region, made of stone. Who know anything about this artefact? I have read that it’s diameter is 3 meters and it’s weights is 400 kilogramms, it’s heights being about 1 meter. One can easily calculate it’s volume V= (4/3) Pi (1.5)^3 /3= 4.7 meters^3. The water of this volume has the mass about 4700 kilogramms, not 400 kilogramms! This means, that the ufo is empty inside like a booble!

http://www.tao.nm.ru/imagepage6.htm