Q: macbook pro crash and restart unexpected

If you are having video issues, this may be applicable:

https://www.apple.com/support/macbookpro-videoissues/

Have the MBP tested by Apple or an AASP.

If not, post an Etrecheck report.

http://etrecheck.com/

Ciao.

First delete CleanMyMac3 from the MBP. Use these instructions:

http://macpaw.com/support/cleanmymac/knowledgebase/how-to-uninstall-cleanmymac-3

Totally unnecessary and can harm the MBP.

Check if your MBP has had a kernel panic.  If so log and post it:

https://support.apple.com/en-us/HT201753

Ciao.

Thank you, but that does not help me.

If you want to run an Apple Hardware Test, use these instructions:

https://support.apple.com/en-us/HT201257

Note that an error free AHT is not conclusive.

Ciao.

These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.

Please triple-click anywhere in the line below on this page to select it:

syslog -k Sender kernel -k Message CSeq 'n Cause: -' | tail | awk '/:/{$4=""; print}' | pbcopy

Copy the selected text to the Clipboard by pressing the key combination command-C.

Launch the built-in Terminal application in any one of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

Paste into the Terminal window by pressing the key combination command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.

Wait for a new line ending in a dollar sign ($) to appear below what you entered.

The output of the command will be automatically copied to the Clipboard. If the command produced no output, the Clipboard will be empty. Paste into a reply to this message.

The Terminal window doesn't show the output. Please don't copy anything from there.

There have been several abnormal shutdowns in the last few days. A negative shutdown code may indicate a hardware problem. The precise meaning of the codes is not publicly documented.

If you haven't already done so, you can try resetting the System Management Controller. Otherwise, or if the reset has no effect, see below.

Make a "Genius" appointment at an Apple Store, or go to another authorized service provider. You may have to leave the machine there for several days.

Back up all data on the internal drive(s) before you hand over your computer to anyone. There are ways to back up a computer that isn't fully functional—ask if you need guidance.

If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.

Keeping your confidential data secure during hardware repair

Apple also recommends that you deauthorize a device in the iTunes Store before having it serviced.

*An SSD doesn't need to be zeroed.

You appear to be running a fairly small SSD with only 37GB available, and have NOT enabled TRIM.

SSD drives in this situation are extremely likely to become completely filled with deleted data and stop responding.

You need to enable TRIM, then invoke Safe mode to clean up the deleted data.

http://arstechnica.com/apple/2015/06/latest-os-x-update-allows-you-to-enable-tri m-for-third-party-ssds/

.

If you are using a name-Brand SSD, manufacturers have had a long time to come into line and support TRIM in some fashion. The risk is small. Apple has not tested all SSD drives up to their high standards, so they are not willing to stand behind things they have not tested.

There is a larger risk on the other side. Without notification of which blocks are deleted data, the drive tracks them all until it fills up and chokes with nowhere to write a new block.