How to make my new computer the main support for my iPhone?

My laptop crashed and I made it the main computer to use with my iPhone. Now I have a desktop and want to make computer the main cpu for my iPhone. Is this possible without having to erase all my data that I have on the phone? Need suggestions Please!

Unfortunately, I think you might have to delete all of your data. The same thing happened to me with my iPod touch. However, you might be able to backup your iPhone on your new computer and then sync it which will result in it being your new main computer for your iPhone and your data will still be present.