574      iPhone_iPad_Mac_apple

iMac random shut down

Hi everyone,

I have a iMac (Early 2009) Intel Core. I had upgrade it up to El Captain and I never had any big problems until about a month ago. It starts shutting down on its own in the middle of me trying to use it. I have tired everything including SMC. I also had contact Tech Support. Originally after Tech Support, I thought it was a hardware problem.

Out of curiosity, I have recovered it back to the original MacOS (Lion) and upgraded to Mountain Lion. And it stop random shut down. But once I tried to upgrade to Yosemite, Maverick, etc... The random shut down came back. Any helps will be greatly appreciated to get my iMac back to El Captain without random shut down. Thanks.

LifeAfterMac

I suspect you have outdated application software that is creating the problem. Please first update all of your third party applications to the most current versions and then re-test. If the issue continues please follow the directions below:

Please post an EtreCheck report of your system. We can then look for obvious issues. Please click the link, download the app and run the report. Once you have the report, please copy and paste it as your reply to this post.

最后更新：2017-09-09 00:14:29

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