Could you please help with my HJT log....

I have a problem where my google searches in ie are getting redirected to other sites and I get a small window shutting my computer down with 1mins notice about 3 times a day. The message reads:

'Shutdown initiated by: NT AUTHORITY\SYSTEM
DCOM server process launcher service terminated unexpectedly'

Nod32, MalwareBytes and windows defender all can't find anything wrong on the computer and I'm tearing my hair out!

I have followed instructions for using HiJackThis and have uploaded the log to this thread, I would be soooo grateful if someone could help me out!

Thanks

 

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Please follow the instructions in the READ & RUN ME FIRST link given further down and attach the requested logs when you finish these instructions.

• If you have problems where no tools seem to run, please try following the steps given in the below and then continue on no matter what you find. You only need to try the TDSSserv steps if having problems getting scans in the Read & Run Me First.
  • TDSSserv Non-Plug & Play Driver Disable
• If something does not run, write down the info to explain to us later but keep on going.
• Do not assume that because one step does not work that they all will not.

READ & RUN ME FIRST. Malware Removal Guide


Helpful Notes:

1. If you run into problems trying to run the READ & RUN ME or any of the scans in normal boot mode, you can run the steps in Safe Mode but make sure you tell us what you did later when you post logs. See the below if you do not know how to boot in safe mode:
   
   • Starting your computer in Safe mode
2. If you have problems downloading on the problem PC, download the tools and the manual updates for SUPERAntiSpyware, Malwarebytes and Spybot ( links are given in the READ & RUN ME) onto another PC and then burn to a CD. Then copy them to the problem PC. You will have to skip getting updates if (and only if) your internet connection does not work. Yes you could use a flash drive too but flash drives are writeable and infections can spread to them.
3. To avoid additional delay in getting a response, it is advised that after completing the READ & RUN ME you also read this sticky:
   • Don't Bump! It Only Hurts You!
4. Any additional post is a bump which will add more delay. Once you attach the logs, your thread will be in the work queue and as stated our system works the oldest threads FIRST.