<P> The table below lists which upgrade paths allow for an in - place install . Note that in - place upgrades can only be performed when the previous version of Windows is of the same architecture . If upgrading from a 32 - bit installation to a 64 - bit installation or downgrading from 64 - bit installation to 32 - bit installation, a clean install is mandatory regardless of the editions being used . </P> <Table> <Tr> <Th> Version and its specific edition of Windows to upgrade from </Th> <Th_colspan="5"> Edition of Windows 7 to upgrade to </Th> </Tr> <Tr> <Th> Home Basic </Th> <Th> Home Premium </Th> <Th> Professional </Th> <Th> Enterprise </Th> <Th> Ultimate </Th> </Tr> <Tr> <Td> Vista Home Basic </Td> <Td> In - place </Td> <Td> In - place </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> In - place </Td> </Tr> <Tr> <Td> Vista Home Premium </Td> <Td> Clean </Td> <Td> In - place </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> In - place </Td> </Tr> <Tr> <Td> Vista Business </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> In - place </Td> <Td> In - place </Td> <Td> In - place </Td> </Tr> <Tr> <Td> Vista Enterprise </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> In - place </Td> <Td> Clean </Td> </Tr> <Tr> <Td> Vista Ultimate </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> In - place </Td> </Tr> <Tr> <Td> XP </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> Clean </Td> <Td> Clean </Td> </Tr> </Table> <Tr> <Th> Version and its specific edition of Windows to upgrade from </Th> <Th_colspan="5"> Edition of Windows 7 to upgrade to </Th> </Tr> <Tr> <Th> Home Basic </Th> <Th> Home Premium </Th> <Th> Professional </Th> <Th> Enterprise </Th> <Th> Ultimate </Th> </Tr>

Which edition of windows 7 do i have