Iphone4 (IOS7) can't sync itunes was unable to load dataclass information from sync services?

My iphone4 (IOS7) can't sync and this "itunes was unable to load dataclass information from sync services" comes up and I have already looked at http://support.apple.com/.../kb/TS2690 but everything is related to Outlook but my Outlook wasn't even connected in the first place. I have never used Outlook on this phone before. I have resetted my sync history many times and have changed the SyncServices folder to SyncServices_Old. "Replace information on this iPhone" on my itunes only has the options of Mail Accounts or Notes, and nothing happens when I select them. I have unplugged all USB devices apart from my phone and have restarted my computer and phone many many times. I have made a new user account but the same message pops up on that as well. I have scanned my computer using the antivirus lots of times too.

Buy a iphone5 bro

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