I have an October 2008 vintage MacBook Pro 17-inch*, which will shortly be revitalised with an OCZ Vertex 4 512GB solid state drive, and with the boost in available disc space, Im exploring options for dual-booting OS X and Windows. * Model ID: MacBookPro 4,1 Order No: MB766LL/A Mfg. Part No: A1261 full spec at EveryMac: » http://everymac.com/systems/apple/m...ore-2-duo-2.5-17-early-2008-penryn-specs.html I have installation discs for: Mac OS X 10.6 Snow Leopard Windows XP Home Edition SP2 My understanding is that the Boot Camp version in OS X 10.6 Snow Leopard will allow me to set up dual-booting between these two OS versions. My natural geek instinct would be to upgrade OS X → 10.7 Lion → 10.8 Mountain Lion, but as I understand it the Boot Camp versions in 10.7 Lion and 10.8 Mountain Lion only support Windows 7. Q. Does this mean that if a successfully dual-booting 10.6 Snow Leopard + Windows XP MacBook Pro has its OS X upgraded (→ 10.7 Lion → 10.8 Mountain Lion), it will no longer dual-boot Windows XP? BTW, Im aware that I can run a virtualised Windows XP inside Oracle VM VirtualBox under OS X 10.7 Lion and 10.8 Mountain Lion (and other virtualisation software is also available); Im interested in the reduced-complexity full-throttle option of dual-booting Windows XP.