Malicious Software Removal Tool in Win10 Home won't run

Greetings RikData,

Today is Patch Tuesday, the second Tuesday of each month.  A new Microsoft Malicious Software Removal Tool will be delivered with June's Cumulative Update ...usually available after 2pm P.S.T.

After your June update finishes downloading and installing, (you may force the update).... and all seems well and stable with your OS...wait an hour for safety....then attempt to recheck the MRT, in the run box to determine whether you receive the same denial of privilege message.  Those are my thoughts up to this point in time .

Regards,

Wayne

Thank you both for all the help.

I shall try and remember to do the update after 9:00pm (UK time), and see whether this solves the issue.

Richard: Whilst I appreciate that there may be other better products/options, it's something that's not working that I want to resolve. And worryingly (for me) it did used to work and it's not working now. That's what I want to solve.

And the worrying message that the System Administrator has stopped this App from running.

(I'm sure you can picture me shouting at the screen: 'I AM THE ADMINISTRATOR' !!!

And I do have Anti-Virus software installed also.

RikDatta,

Possible solution, you must try**........after** you have tried  typing in MRT to the run box and after the June Cumulative Updates and MSRT update.   Carefully follow the instructions below.

1.  Type comm in Cortana box.  Right click on Command Prompt.  Left click on Run as Administrator.  Allow app to make changes box opens...select yes.   Administrative Command Prompt opens. 

Type in or paste   C:\Windows\system32\MRT.exeto the command prompt and press enter. Wait for the MSRT Tool to open.  Click next.  Select quick scan. Scan commences.

If the scan commences you have achieved permission as administrator.

Let me know if this method allows you to run the MSRT .  Do this all well after the June Patch Tuesday Windows Cumulative Updates.

Regards,

Wayne

Hi Wayne.

I did the update, and after restarting, I did as you suggested.

You will see below, that I typed in (copy + paste) exactly what you said.

This is the message I got in Command Prompt:

C:\WINDOWS\system32>C:\Windows\system32\MRT.exe

This program is blocked by group policy. For more information, contact your system administrator.

C:\WINDOWS\system32>

So, still the same.

I checked in system32 and the mrt.exe file is there, dated: Tue 13 06 2017 19:51

RikDatta,

How long ago did your computer stop recognizing you as Administrator?  I'm exploring this topic in greater detail but need more time to research it.

Another strategy might be to run the identical command  C:\WINDOWS\system32>C:\Windows\system32\MRT.exe  from within the command prompt of the Advanced Startup.  Have you ever entered into the Windows Recovery Environment (WinRE) aka Advanced startup in Update and Security and then selecting Recovery? Advanced Startup is found there.  

There is a command prompt buried deep inside the WinRE that is outside of the Windows partition "C" drive.  If you enter the WinRE you are administrator.

Did you perform Disk Cleanup, SFC /scannow, and DISM /online /cleanup-image /restorehealth?  If not please do so /to rule out.

I get back to you later when I have further suggestions.  I realize this is somewhat tedious.

Regards,

Wayne