Apple does not bundle crapware in with any of its software.
Uninstall iTunes and then download iTunes from the Apple site: http://www.apple.com/itunes/download/
I uninstalled and re-installed iTunes from the apple site but my Microsoft Data Execution Prevention program keeps shutting it down. AVG indicated a trojan (which it got rid of) but the download also added MyPC Backup and a couple of other unwanted programs. How do I keep iTunes running? This is the only computer still running XP but it is connected to a WiFi network and I am worried that the problem will affect my other devices.