I have a 2013 Retina 15.4" Macbook Pro and 2012 Retina MBP. Was having the same issue with UserEventAgent hogging up 117-140% CPU.
The following worked for me to temporarily solve the issue. I nneded to get it solved as my battery lasted only 1.5 hrs due to high CPU use.
Go to
System/Library/LaunchAgents
and "move" the following files out of the folder to any place safe.
1. com.apple.UserEventAgent-LoginWindow.plist
2. com.apple.UserEventAgent-Aqua.plist
OSX will ask you for admin authentiction.
Once done. Reboot and the HIGH CPU usage should be gone.
I noticed that these are agents used to trigger important system drivers (as far as I know and I may be stupid) but so far it has not affected anything at all. System is running fine for the last 2 hrs.
Just my two cents.
If this screws up things for anyone, pretend you never read this. ;-)
I have a 2013 Retina 15.4" Macbook Pro and 2012 Retina MBP. Was having the same issue with UserEventAgent hogging up 117-140% CPU.
The following worked for me to temporarily solve the issue. I nneded to get it solved as my battery lasted only 1.5 hrs due to high CPU use.
Go to
System/Library/LaunchAgents
and "move" the following files out of the folder to any place safe.
1. com.apple.UserEventAgent-LoginWindow.plist
2. com.apple.UserEventAgent-Aqua.plist
OSX will ask you for admin authentiction.
Once done. Reboot and the HIGH CPU usage should be gone.
I noticed that these are agents used to trigger important system drivers (as far as I know and I may be stupid) but so far it has not affected anything at all. System is running fine for the last 2 hrs.
Just my two cents.
If this screws up things for anyone, pretend you never read this. ;-)