Mojave shutting down by itself

Please try the following, in order. Stop at any step where the issue is resolved:

1. Create a new user account.
   • How: System Preferences > Users & Groups > "+" button
   • Why: Create a new user account to log into to determine if the current user account is problematic.
2. Reset your Mac's SMC.
   • What: Reset the System Management Controller (SMC) on your Mac- Apple Support
   • How: Hold down the <shift><control><option> keys, and then, press the power button. Hold all of them for, at least, 10 seconds.
   • Why: Resets fans, keyboard backlight, status indicator, battery indicator, display backlight, power button, close/open the lid, sleep or shut down, battery doesn't charge, MagSafe indicator light incorrect status.
3. Boot up your Mac in Safe Mode.

   What: Use safe mode to isolate issues with your Mac- Apple Support

   How: At boot-up, hold down the <shift> key until the Apple logo appears on the screen.

4. Run Apple Diagnostics to uncover any hardware issues with your Mac.
   • How to use Apple Diagnostics on your Mac - Apple Support
   • Apple Diagnostics: Reference Codes - Apple Support
5. Run an EtreCheck report and post it here so that we can help diagnose any issue that we may uncover with your Mac.
   
   • You can download EtreCheck Pro fromhere or download it from the Apple App Store.
   • Start EtreCheck from a normal user account. Optionally, you can run it from a user account with Administrator privileges for additional details.
   • Select a problem from the drop-down menu to enable the "Start EtreCheck" button. Optionally, you can add comments on what issues your Mac is experiencing, especially to aide others with similar Mac issues.
   • Click on Start EtreCheck
   • Allow the program to run to completion.
   • When done, select Report from the left-side window to display it.
   • Select the "Share Report" icon.

     Select Copy Report

   • Paste the report to your reply post. (Note: The EtreCheck report does NOT contain any personal information.)
   • Ref:Using EtreCheck- ASC (etresoft)

About unexpected restarts

In rare cases, your Mac might encounter an unrecoverable issue affecting all open apps. When this happens, your Mac must be restarted. This is sometimes due to what is known as a "kernel panic" because an underlying part of the operating system (the "kernel") has determined there is an issue that requires a restart.

If your computer experiences a kernel panic, a message may appear for a few seconds explaining that the computer has been restarted: "Your computer restarted because of a problem. Press a key or wait a few seconds to continue starting up." After a moment, the computer continues starting up.

Preventing unexpected restarts

In most cases, kernel panics are not caused by an issue with the Mac itself. They are usually caused by software that was installed, or a problem with connected hardware.

To help avoid kernel panics, install all available software updates until Software Update reports, "Your software is up to date." OS X updates help your Mac handle the kinds of issues that can cause kernel panics, such as malformed network packets, or third party software issues. For most kernel panics, updating your software is all you have to do.

After your computer restarts

Once your Mac restarts successfully, an alert message appears, "You shut down your computer because of a problem."

Click Open to re-open any apps that were active before you restarted. If you believe the issue may have been caused by one of the apps that you were using, click Cancel instead. If you don't click anything for 60 seconds, OS X automatically continues as if you had clicked Open.

Software known to cause kernel panics

OS X Mavericks helps you correct kernel panics related to software you may have installed. If the cause of the kernel panic is known, Mavericks offers to help you disable its related software:

• If "More Info…" appears, click it to see more details about the issue, including possible workarounds or resolutions.
• Selecting the option to "Ignore" does not alter the software that may be related to the issue.
• "Move to Trash" moves software that is likely related to the issue to the Trash, but the Trash is not automatically emptied. When you select this option, an additional sheet appears:

1. Click "Restart" to disable the software that may be responsible for the issue.
2. When prompted, enter an administrator name and password.
3. Click "Move to Trash".
4. After restarting, the related software is in your Trash.
   Click the Trash icon in the Dock to see which software was removed.
   Contact the developer of the software to see if an update or more information is available.
5. Empty the Trash if you want to permanently remove the third party software.

Then I would think that you will need to speak with your employer or company's IT support folks for further assistance on this. Sorry, I couldn't help out. Good luck!

Three things:

1. If you want assistance with an issue or problem you are having with your Mac, try starting a new post so that it gets the attention it deserves and not deflect help from the OP.
2. You are not talking directly to Apple here. We are fellow Apple-product users. just like yourself. Apple representatives. may or may not, respond to posts. If you want to address Apple directly, try either:
   • Contact Support, and/or
   • Product Feedback
3. Your post appears to be a "rant." The following is an excerpt from the ASC Use Agreement covering that subject:

"Post constructive comments and questions. Unless otherwise noted, your Submission should either be a technical support question or a technical support answer. Constructive feedback about product features is welcome as well. If your Submission contains the phrase "I'm sorry for the rant, but…" you are likely in violation of this policy."

Ref: Apple Support Communities Use Agreement- Matt K. (ASC Host)

yes Buddy ,

Its really frustrating...And I got a new laptop, all hope went into gutter.

@Apple:- Need refund .. take your precious notebook back.