Conflict with AVG Internet Security

Wondering if Microsoft Windows Defender[if I scan and update it, and keep it active] AlsoTrusteer Endpoint Protection will be in conflict with my AVG Internet Security.

Jack, Windows Defender… Yes. Formerly known as Microsoft AntiSpyware, is a software product that helps combat malware. Windows Defender was initially an antispyware program; it is included with Windows Vista and Windows 7 and is available as a free download for Windows XP and Windows Server 2003. In Windows 8, however, it is upgraded to an active antivirus program. Have a look @ this AVG article (http://avgclick.me/prepareforAVGinstall).
AVG Guru