Trouble with system crash!
here's report from etrecheck.
iMac 27″, macOS 10.12
Question marked as
Well first thanks for posting your EtreCheck report, that was helpful to us. I see several issues. First is you have turned off Apple's security which is a MAJOR no no. You need to fix that ASAP. Apple explains this in Change Privacy & Security Advanced settings on Mac - Apple Support
Next, I see your iMac has suffered Kernel Panics. These can be very difficult to troubleshoot as KPs can be caused by hardware or software so finding the right item takes some methodical troubleshooting. The most common hardware causes are RAM and failing or failed HD. I see your iMac has 32GB of RAM. If you (or a previous owner) upgraded the RAM yourself that would be the first thing to check. RAM KP's can be caused by either:
• Unseated RAM (remove and reseat)
• Incorrect RAM (replace with only macsales.com or crucial.com RAM)
• Failed RAM
To check if the problem is RAM then start by reseating the RAM and then test the Mac for a few days. If a reseat does not help then remove the RAM and test with the original RAM the computer shipped with.
If the problem is the HD (which it could be as your computer has an 8 year old HD installed) then take the computer to an independent Apple Authorized Service Provider in your area and they may be able to help you. Here is the link to find one: Apple Authorized Service Provider Locator (AASP) & Genius Appointment. An Apple Store will not work on your 2015 iMac as it is now obsolete and they cannot get parts for it.
Finally, there is ZERO evidence that you back up your computer. THIS IS A HUGE PROBLEM and needs to be fixed before you do ANYTHING else. I would recommend that you buy an External Hard Disk and begin using Time Machine to back up your computer today, not tomorrow!!!!!! If your problem is the hard disk then you are at risk of losing ALL of your data and once it's gone it's gone!!!!!
Good luck!