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  1. lambreff

    Serial Crashes - iMac 2017

    Thank you for reaching out! The problem started before BigSur. I have run the disk utility first aid tool from inside the OS (after logging into my account). Furthermore, I have used the command-R option upon startup, which would take me to a separate tool (prior to being able to log into your...
  2. lambreff

    Serial Crashes - iMac 2017

    Yes, you are right about the MacOS. Please take a look at my reply to the respective threads as well. Yes, I always download the latest OS as prompted by Apple. I believe the versions are stable, e.g. not Beta. I have not signed up for Beta versions. The crashes started around September 2020...
  3. lambreff

    Serial Crashes - iMac 2017

    Appreciate your follow-up. The MacOS used is the latest one, e.g. MacOS BigSur. I'd always update to the latest version. Nevertheless, the serial crashes continue. Right now, I have updated to 11.2.3 and the crashing persists. I have yet to determine if this is a software or a hardware related...
  4. lambreff

    Serial Crashes - iMac 2017

    Thank you for your question. The software that runs right before the crashes is always different. I usually have multiple apps open, such as Mail, Calendar, Contacts, Safari, Chrome, etc. I've been looking for a pattern myself. However, the spontaneous crashes continue. I was hoping the...
  5. lambreff

    Serial Crashes - iMac 2017

    Hi Cheryl, It happens with all kinds of applications running. So, it’s occurred multiple times over many months. I’m always running all kinds of applications. Hope that helps. Thank you and I look forward to hearing from you.
  6. lambreff

    Serial Crashes - iMac 2017

    Hi, Apple Support Community! Thank you for your superb service and continued support! I have a 2017 iMac, which would sporadically crash. I keep it up-to-date using the latest MacOS (BigSur). I have also run disk utility's first aid from within the system. Since Sept. 2020, my iMac has...
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