My Gateway laptop keeps shutting itself off

Welcome to Majorgeeks!

You MUST the directions as given in the links for GetRunKey and ShowNew. You are not following them for either program. The log you attached for ShowNew is incomplete. You MUST extract ALL files from the ZIP file and you MUST run the .bat files from a Windows Explorer session. If you run them from inside the ZIP file, they will not work properly.

I will warn you right now that I doubt your problems are malware.

You should not say that you do not have power problems unless you have physically opened up your laptop and measured all the voltages at appropriate points and then also check the voltages with an oscilloscope to make sure there are no noise spikes on the DC supplies. I'm not saying this is your problem, I just saying you cannot make that statement you made without having done this.

You problems could even be due to overheating.

Other comments which have nothing to do with your PC shutting down:

• you should not have both Windows Defender and CounterSpy running. It will cause conflicts and wastes lots of system resource which will slow your PC down.
• if your McAfee software also contains an antispyware feature your will want to uninstall both CounterSpy and Windows Defender. (Yes I know they were requested - but only one was requested - in the READ ME, but that is a generic cleaning process which makes no assumptions about what protection anyone may or may not already have).

When was McAfee installed? And when did you uninstall Symantec (which by the way was not uninstalled properly).

 

It is not your fault! It is Symantec's fault! Uninstalling their software can be as difficult as removing malware. We see it ALL the time. I'll give you some steps to use to try and remove it further down.

As I said earlier, your problems with your PC shutting down are not malware. Below are some things you need to do anyway.

First if CounterSpy is a free trial version, uninstall it and keep Windows Defender.
If CounterSpy is a paid version, keep it and uninstall Windows Defender.

Now let's try to cleanup the stuff remaining from Symantec.

• Click on Start, then Run ... type services.msc into the box that opens up, and press 'OK'.
• On the page that opens, scroll down to SymWMI Service
• then right click the entry, select Properties and press Stop Service.
• When it shows that it is stopped, next please set the Start-up Type to 'Disabled'.
• Click OK until you get back to Windows.
• Now repeat the above for the following service: LiveUpdate

• Next, run HJT, but instead of scanning, click on the None of the above, just start the program button at the bottom of the choices.
• At the lower right, click on the Config button
• Then click the Misc tools button
• Select Delete an NT Service
• Copy/pasteSymWSC into the box that opens, and press OK
• If you receive any error messages just ignore them and continue.
• Now repeat the above for the following service: LiveUpdate
• Now exit HJT but do not reboot when it tells you it needs to. We will do that further down after running HJT again to fix some other items.

Now run HijackThis and select the following lines but DO NOT CLICK FIX until you exit all browser sessions including the one you are reading in right now:
O16 - DPF: {2BC66F54-93A8-11D3-BEB6-00105AA9B6AE} (Symantec AntiVirus scanner) - http://security.symantec.com/sscv6/SharedContent/vc/bin/AvSniff.cab
O16 - DPF: {44990200-3C9D-426D-81DF-AAB636FA4345} - http://www.symantec.com/techsupp/asa/ctrl/tgctlsi.cab
O16 - DPF: {644E432F-49D3-41A1-8DD5-E099162EEEC5} (Symantec RuFSI Utility Class) - http://security.symantec.com/sscv6/SharedContent/common/bin/cabsa.cab

After clicking Fix, exit HJT.
Now reboot in normal mode
Now attach a new HJT log and tell me how the above steps went.
For your shutdown issues (which I assume still happen), you should try posting in the Hardware Forum (maybe the Software Forum). Your Event Logs (that someone should ask for) may include information on why it is shutting down.

 

You're welcome! You HJT log is clean and the Symantec stuff is gone.

Good luck with your Shutdown issue.

 

Thanks for the update! That is one of the most common problems with random shutdowns.