iPad not syncing with HP running Windows 7

I has a HP laptop running Windows 7 64-bit. When I connect my iPad with it to sync by iTunes, iPad properly doesn't synchronize.It runs failed with some issues:The required file cannot be found. A duplicate file name was specified.A folder was specified instead of a file.Some HP notebooks PC, including HP Envy 15, Pavilion dv6, Pavilion dv7 and Pavilion dv8, have this sync problems. To resolve