(adsbygoogle = window.adsbygoogle || []).push({}); I have an old PC on Windows XP Home edition, I think about 5-6 years old (Not sure at all) and I wanna upgrade it to Windows 7, Is that possible? If so, can someone please help me do it. And if you could link me somewhere to get Windows 7 for free? And ....How do I find out If I need 32 bit or 64 bit. Help will be much appreciated. Thanks

Also I don't have the original installation disk if that means something