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2010 iMac running El Capitan is running very sl...

My mid-2010 iMac 21.5 with 4GB of memory (processor: 3.06 GHz Intel Core i3) is running very slowly and now increasingly is freezing up and getting the rainbow wheel. I have to switch it off at the power to reboot. Its on El Capitan v10.11.6.

What can I do to improve performance? I'm thinking about resetting to factory settings and restoring from a backup. I keep my backup on an external hard drive.

Any help is much appreciated.

Thanks

Could be any number of things or a combination of different things.

The best way to sort out the problem, is to run EtreCheck and post back with the results.

https://etrecheck.com/

最后更新：2017-10-01 10:55:48

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