Malicious Software Removal Tool in Win10 Home won't run

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,

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

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.

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

My thoughts on this is that the original and/or the second (apparently updated from the 1st one issued for May for some reason, it is unusual to have two in the same month especially so close together) from auto update would have automatically run a quick scan, presumably no notification was given of a problem found or error reported and that this therefore is not something to fret about at this time at least. Since the next months newer version of the MRT always carries the same KB number and a new one is due any day now just check the Settings update history and when you see that it has been downloaded, say the day before so as not to attempt to manually run it while it may be silently running in the background as per default, and then see if the issue with the manual initiation of the scan persists.

If one is worried that there may be a hidden infection on their device the Microsoft Safety Scanner is linked to on the MRT page that I linked in my first reply to this thread.

Remember and or be aware that the MRT is not a substitution for anti-virus real-time protection, it is a once a month (generally) downloaded and silently run in the background second layer specifically designed to remove any malicious files and/or software, with the most recent definitions available at the time of it's release, that may have been so new that they may have slipped through the real time AV solution that is being used on the device.

IMHO, Windows 10 Defender is a top notch world class AV application as well as being the least intrusive and resource hungry when integrated with the Win 10 OS. This is what I use and I then also have MBAM free installed and use it as a stand alone secondary scan about once a month in case something may have slipped through the Win 10 Defender and nothing has yet (I am careful not to invite or allow the installation of PUP's on my device).

Any further thoughts on this topic are invited.

-Richard