iTunes error code 45019

Hey Suchat,

Thanks for the question. This error usually occurs when a required component is not installed, or damaged. To resolve your issue, it may be best to completely uninstall iTunes and all related components:

Removing and reinstalling iTunes and other software components for Windows Vista, Windows 7, or Windows 8

http://support.apple.com/kb/HT1923

For Windows XP, follow these steps to remove and reinstall iTunes and other software components for Windows XP.

Thanks,

Matt M.

i have this issue too iv spent hours reparing and redownloading and still keeps popping up