The OS that comes with E6410 is 32 bit
can i get windows 7 64 bit dvd?
Unfortunately we cannot ship windows 7 64 bit, since your system is configured with windows 7 32 bit. We can only send the windows 7 32 bit DVD. If you would like to use the windows 7 64 bit you can order the DVD from Microsoft directly.
Thanks and regards,Senthil S#iworkfordell.To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US / India . For Dell support videos click here.
Follow Windows Reinstallation Guide/A Clean install of Windows 7:
Backup your product activation using the activation backup and recovery program and then clean install Windows 7 64 bit using a .iso from Digital River without inputting a product key. Restore your product activation using the activation backup and recovery program and install all the drivers as instructed.