![]() ![]() Select Reinstall OS X and click on the Continue button.Quit Disk Utility and return to the Utility Menu.Click on the Apply button, then wait for the Done button to activate and click on it.Important: You can force a shutdown if necessaryfor example, if your Mac becomes unresponsiveby pressing and holding the power button until your Mac shuts down. Set the Format type to APFS (for SSDs only) or Mac OS Extended (Journaled.) You don’t need to shut down your Mac when connecting or disconnecting cables, such as USB-C, Thunderbolt, or Ethernet.Click on the Erase icon in Disk Utility's toolbar.When Disk Utility loads select the drive (out-dented entry) from the Device list.Select Disk Utility from the Utility Menu and click on Continue button.Immediately after the chime hold down the Commandand Rkeys until the Apple logo appears. Erase and Install OS X Restart the computer.When the Utility Menu appears select Reinstall OS X then click on the Continue button. Reinstall OS X by booting from the Recovery HD using the Command and R keys.Download and install the OS X El Capitan 10.11.6 Combo Update or 10.12.6 Combo Update or Download macOS High Sierra 10.13.3 Combo Update as needed.Just click on the Apple menu > System Preferences > Battery. If your problems cease, then consider switching to the new account and transferring your files to it - Transferring files from one User Account to another. Considering you get up from work and want to go to sleep, you can get your Mac to go to sleep after a set period of inactivity. Upon completion log out of your current account then log into the new account. On the left under Current User click on the Add button under Login Options. Click on the lock icon and enter your Admin password when prompted. Create a New User Account Open Users & Groups preferences.Restart the computer from the Apple Menu. Quit Disk Utility and return to the Utility Menu. Click on the First Aid button in the toolbar. Select the indented (usually, Macintosh HD) volume entry from the side list. Choose Disk Utility and click on the Continue button. Immediately after the chime hold down the Command and Rkeys until the Utility Menu appears. Repair the disk by booting from the Recovery HD.Start the computer in Safe Mode, then restart normally.Reset the System Management Controller (SMC).Disconnect all third-party peripherals and remove any support software like drivers and plug-ins.Shutdown the computer, wait 30 seconds, restart the computer.You should try each, one at a time, then test to see if the problem is fixed before going on to the next.īe sure to backup your files before proceeding if possible. And it's easier for us than you - we have a 21" so the screen will be bigger, not smaller.Press and hold down the Power button until the machine shuts down.Ī Troubleshooting Protocol to Identify Problems or Fix macOS El Capitan or Later I'm glad to see I'm not the only one who has been able to hold onto an iMac for so long. But with 10 years from a desktop that is still going strong (speedy, reliable, etc.) and has pretty much powered on for the entire 10+ years, I can't complain about finally being pushed to buy a new machine. Maestro - we are finally updating to the new 24" from our 2011 (we did two SSD upgrades) and only because software support is really vanishing. Thinking about replacing it with the new OSX 12 coming out which will render the compute obsolete from a software upgrade stand point. I can tell you PC can not deal with being left on, my work PC has to be shut down all the time otherwise it get laggy or just begins to misbehave We run a 2012 Imac 27" to give you and idea and only had to replace the HDD because it start to die, replaced it with a 2TB SSD and now the computer is like new. I have done this for years with no ill effects. ![]() I do from time to time run maintenance utilities to clean up logs files and such and make sure everything is working fine. Yep we never shut down our Mac desk top, it only goes to sleep at the end of the day, it can be months before a restart happens. ![]()
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