How to Fix Apple iTunes Error 0x80090318? iTunes is compatible with Mac devices to sync different data or share it between Apple devices including MacBook, iPhone and iPad etc. Syncing can take time as per the volume of data and internet speed but if you face any error or error code then it must be fixed instantly under the management of expert techies who are available with Apple Mac Tech Support. Some of the Apple iTunes users have complained that they are encountering an error 0x80090318 then we have tried our level best to support them with the important instructions about that particular error code. So you can check the further details from below as cause of the issue, steps to fix it, How to Fix iTunes Error 0x80090318 etc.