What should i do erase this iphone and sync with this itunes library?

I'm trying to get ringtones and when I go to "tones" my "sync tones" was off so I click the box and it says " the iphone "alexis" is synced with another iTunes library do you want to erase this iphone and sync with this iTunes library" will that delete all my music and contacts and pictures and apps? What will it to? I have a new iTunes and i've bought stuff on it so does that mean it will switch to my cupiecake1221 one? My old one was iluvmom1221 so would it just switch to the one i'm using now? What will it do!

If you plug it in to a new computer and sync it with this new computer it will clear all the data off your phone

  • Will deleting my iTunes library erase it from everything? I recently got an apple computer and have been switching everything over from my pc. Once done, I'm giving my old pc to someone else so I want to make sure none of my old stuff is on it. I have already imported my iTunes library to my apple computer so I want to get rid of it on the other one. If I delete all the music in the library on the windows, will it also delete from the mac and my other devices it's on? Like my iPod and phone?
  • What will erase and sync erase on my iphone? I wanted to connect my iphone to a new computer but it says erase and sync, what will it erase? All of the contents or just music?
  • IS THERE ANY Way YOU CAN BYPASS ITUNES ERASE AND SYNC? I have an iphone and i don't want to delete all the songs i recently put on with another computer/itunes account is there any way i can bypass itunes erase and sync?
  • If I sync another iphone to my iTunes will this delete my previous sync on iTunes? I synced my phone to iTunes and now let's say I want to sync my friends iphone to the same computer. Will this delete my previous sync? I'm hoping it does because I want my previous sync deleted as I don't want others getting my stuff on their iPhones thanks heaps