I have a Version of OSX El Capitan 10.11.3 aged 5 years, 2.5 GHz Intel Core i5computer processor.  It is slow and jerky.  Any suggestions?  I empty the trash. I have an external backup.

I have a Version of El Capitan OSX 5 years 10.11.3, processor 2.5 GHz Intel Core i5computer.  It is slow and jerky.  Any suggestions?  I empty the trash. I have an external backup.

Update your software OS X v10.11.4.

Instructions here > How to upgrade OS X

If after the update is installed, you see always the same slow and jerky behavior, a Safe Mode boot removes the system caches that can help.

Upper left corner of your screen, click on the Apple  > Shut Down.

After your Mac stops, wait 10 seconds, then press the power button.

As soon as you hear the startup tone, hold down the SHIFT key. You must press the SHIFT key as soon as possible once you hear the startup tone, but not before.

Release the SHIFT key when you see the gray Apple logo and progress indicator.

Once you are in Mode without failure, return to the menu Apple . In the drop-down list, click: reboot

On Safe Mode

Tags: Mac

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