Mid 2014 MacBook Pro randomly shutting down

Thanks for the help. I ran the Apple Diagnostics like you said but it didn't show any errors.

Also, I ran the first Aid tool in the disk utility and here is the report. I deleted the parts where it said checking snapshots but there were 126 of them

Verifying file system.

Volume could not be unmounted.

Using live mode.

Performing fsck_apfs -n -l -x /dev/rdisk2s1

Checking volume.

Checking the container superblock.

Checking the EFI jumpstart record.

Checking the space manager.

Checking the object map.

Checking the APFS volume superblock.

Checking the object map.

Checking the fsroot tree.

Checking the snapshot metadata tree.

Checking the extent ref tree.

Checking the snapshots.

Verifying allocated space.

The volume /dev/rdisk2s1 appears to be OK.

File system check exit code is 0.

Restoring the original state found as mounted.

Operation successful.

Finally, this is the report from EtreCheck which I have run before and didn't show any major problems

Thanks again for the help. I uninstalled Avast like you suggested. Also, I Just did a complete backup for the first time using time machine the other day but have most of the important stuff which isn't much, backed up to Dropbox already and also use iCloud to back up my notes.

Do you know why there would be so many snapshots since from what I read they would normally only be saved for 24hrs?

Also, you don't mention finding anything that might be the cause but from the last part about making sure I have frequent backups that you might think it has something to do with the SSD. Is this correct?

So I followed the directions in the link you posted to delete the snapshots and it looked like it did something, however I don't know if actually deleted anything. From what I was reading online, usually when have a lot of snapshots and delete them it will free up some space on the HD but I didn't notice that I had any more space. Also, I just noticed that system storage is taking up over 90GB of space and was reading that it could be caused by having to many snapshots.

Do you think this could be related?

Thanks

It may take macOS some time to finish processing the deleting of the snapshots. Unfortunately the Storage Management part of macOS is not accurate.

Thanks I'm pretty sure it showed it completed deleting all the snapshots. Either way I ran first aid again and this time it didn't show any snapshots in the details section. So maybe your right in that it is not showing an accurate number

If you want to delete local snapshots manually, turn off Time Machine temporarily:

1. Open Time Machine preferences from the Time Machine menu  in the menu bar. Or choose Apple menu  > System Preferences, then click Time Machine.
2.Deselect ”Back Up Automatically” or click the Off/On switch, depending on what you see in Time Machine preferences.
3.Wait a few minutes to allow the local snapshots to be deleted. Then turn on Time Machine again. It remembers your backup disks.

I will give this a try thanks.

elcpu wrote:

You responded to me but the comments about the storage not been accurate were made by HWTech, not me. My own Storage seems to be accurate, about 15GBs for the System. I have no snapshots as I use Time Machine on demand to an external drive.

Sorry don't know what happened but I guess I hit reply to the wrong person. Anyway not sure if this is normal but something weird is happening when I check my storage. When I opened the storage window just now, it showed the system was using 99GB of storage. Then after about 30 seconds or so it showed it was using133GB. I deleted a couple of files which were around 12GB in total from my desktop and downloads folders. After doing this it showed it was using 88GB of space. Then without me doing anything it went back up to 99GB after 30 seconds or so.

Any ideas why it might be varying so much? I can understand it takes a few to fully calculate the total when I first open it, but I don't understand why it would go down so much after deleting just a few things and then jump back up without touching anything?

Thanks