iMac works fine with safe mode only

iMac works fine in safe mode, but in normal mode, it freezes constantly, the wheel that turns, the freezing of the apps, and when I try to restart, it gets stuck. I have to hard reboot. I tried to reinstall the operating system, which did not help. I have reset the NVRAM, but it has not solved the problem. I came across another post in 2013, with another user who was having a similar problem. There are detailed instructions to run diagnostic tests via terminal and display the results. This seemed to fix the problems of the user, but I don't know what to do with the information it generates. I have an iMac 2009 El Capitan 10.6.11 running. Can someone help me understand what the problem is?

Post edited by: Namaste85

If you have any type of antivirus, cleaning or ANY other third party maintenance application installed, please find the developers instructions and uninstall. At best, these types of applications are 100% useless and at worst they cause more harm (similar to what you are experiencing) than good.

If you don't have one of these types of applications installed, run a report of EtreCheckof your system. We then look for obvious problems. Please click on the link, download the application and run the report. Once you have the report, please copy and paste into your response to this post.

If you would like more information on what is EtreCheck, just click on the link and you will find a description of the application.

Tags: Mac

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