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.
Windows Reinstallation Guide and Related Wikies See here for other wikies such as Customising and Using Windows 8.1, Dell Wireless Cards and Unofficial Drivers.