Removing DivX and DivXUpdate

If you'd like to remove the DivX app along with its DivXUpdate, you need to uninstall the software.

Uninstaller

Uninstaller you can find in /Applications/DivX folder and run Uninstall DivX for Mac.app.

Manual Removal

If above folder and uninstaller doesn't exist, just remove:

/Library/Application Support/DivX/DivXUpdate.app

To remove the associated launchd services, check first which one are registered by this Terminal command:

launchctl list | grep divx

Then disable or remove them. The following two commands will remove the jobs:

launchctl remove com.divx.update.agent
launchctl remove com.divx.dms.agent

After you may consider removing these service files from /Library/LaunchAgents (called divx).

sudo rm /Library/LaunchAgents/com.divx.update.agent.plist # For Update
sudo rm /Library/LaunchAgents/com.divx.dms.agent.plist # For DivXMediaServer

Killing notification popup

Then kill the annoying update app, type this command in Terminal:

killall DivXUpdate

My moms friend had this problem also and we ended up doing searches and found that my mom was listed 4 times in different apps and she deleted them all and put it in again in contacts and it worked. If you go to messages for example and pull down on screen you can search. So it might be entered into several apps. If you pull up more than one then this could help. Just can't hurt to try it. Or if you go to iCloud.com Mail and Contact settings you can see if there is a rule.