Windows Vista X86 X64
I had 32 bit hardware and so i installed win7 x86 on that.i bought x64 hardware and when i install Hard disk, win7 x86 is not boot normaly and could not repair.now i want upgarde win7 x86 to x64, becuase i need my program installed on win7 x86.when i put dvd in DVDROM and select upgrade, this message apper:for upgrade, you must boot windows and then insert DVD and then install windows and select upgarde.but my old win (x86) dose not boot and so i could not upgarde in old win.please help me.thanks.