You will have to erase all content and settings on her iPad and set it up as a new iPad. When setting it up you will be asked if you want to create a new Apple ID or use an existing Apple ID. Choose to create a new Apple ID and follow the onscreen instructions. Your wife will then have a completely separate account from yours.i bought an apple ipad 2 for my wife but set it up using my apple login. i then i bought myself an apple ipad3 and i use the same login. i'd like to change hers so that she can get her own ibooks, itunes music/video, etc. how do i do this? thanks,
You will have to erase all content and settings on her iPad and set it up as a new iPad. When setting it up you will be asked if you want to create a new Apple ID or use an existing Apple ID. Choose to create a new Apple ID and follow the onscreen instructions. Your wife will then have a completely separate account from yours.