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tyroneboman, Mac Genius
Category: Mac
Satisfied Customers: 9706
Experience:  Computer specialist.
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Mail on my late 2015 iMac crashes before opening. i have

Customer Question

mail on my late 2015 iMac crashes before opening. i have tried rebooting but that has not helped.
JA: How much experience do you have with this particular machine?
Customer: it is 3 months old. just updated to Sierra.
JA: Have you installed any updates recently?
Customer: Just updated to Sierra but this did not happen right after. two shut downs later.
JA: What troubleshooting have you tried?
Customer: i tried a PRAM as described in this blog dated five years old.
JA: Anything else you want the Mac expert to know before I connect you?
Customer: no
Submitted: 9 months ago.
Category: Mac
Expert:  tyroneboman replied 9 months ago.

Hi ,

My name is***** am sorry to hear that you are having this issue.

I will be glad to assist you with this.

Follow these steps to start up into safe mode.

  1. Start or restart your Mac.
  2. Immediately after you hear the startup sound, press and hold the Shift key.
  3. Release the Shift key when you see the Apple logo appear on the screen.

After the Apple logo appears, it might take longer than usual to reach the login screen or your desktop. This is because your Mac performs a directory check of your startup disk as part of safe mode.

If it works normally then you can leave safe mode, restart your computer without pressing any keys during startup.