Question: how to set ringtone in iphone using windows?
Answer: Open iTunes from your program list.
Check to see if you have a Ringtones category within your Library. ... 
Quit iTunes then click to open the Start menu from the bottom left of the screen. ... 
Click to open the Start menu from the bottom left of the screen. ... 
You can now restart iTunes. ... 
Select Preferences from the Edit Menu.