Windows XP Home Edition
http://bitsnoop.com/windows-xp-home-edition-with-sp2-an-q1850254.html
Windows Vista Home Premium
http://bitsnoop.com/windows-vista-home-premium-dell-oem-q1747583.html
Windows 7 Home Premium
http://bitsnoop.com/windows-7-home-premium-with-product-q22291244.html
Windows 8
Instalation Key :
TK8TP-9JN6P-7X7WW-RFFTV-B7QPF
Mac OS X Mountain Lion
http://bitsnoop.com/mac-os-x-10-8-mountain-lion-iso-unt-q39681903.html