Microsoft .Net framework 4.0.30319 installutil.exe always popup as command prompt

I have problem the command prompt always popup like the picture below, I think this is cause of virus. How should I do?
Hi there, thanks for your question.

Firstly, I'd definitely recommend running antivirus scans with the below software:

https://www.eset.com/us/home/online-scanner/
https://www.malwarebytes.com/adwcleaner/

This should remove any malware from your system and may stop these command prompt popups.

If it doesn't help, you can also try the below:
Perform a clean boot:
https://support.microsoft.com/en-au/help/929135...

Run the System File Checker tool:
https://support.microsoft.com/en-us/help/929833...

Please let me know if you need further support! Thanks!

Note: Non-Microsoft websites are linked. The pages appear to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

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This is not likely to be a virus / malware. Try following first -

1. Try running SFC / DISM and check after this
https://answers.microsoft.com/thread/bc609315-d...

2. Invoke Task Manager from CTRL+SHIFT+ESC > Under Start up see if Microsoft Store is listed. If yes, right click on it and Disable

3. Windows Key+R > Copy and paste following into Run and Enter
shell:startup
This will openup Startup folder
See if you have this in it

4. Use Autoruns to find out where this gets hidden

Autoruns for Windows - https://docs.microsoft.com/en-us/sysinternals/d...
Best regards
Vijay A. Verma @ http://www.eforexcel.com/

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Hi JinSengbandith

There is some installation stuck in your Windows Startup Routine, you need to find that and delete it . . .

Task Manager and indeed Msconfig offer only limited control over Startup items . . .

Click the link below to download a small free utility that does not require installation

When the file downloads, unzip it.

Depending on your system, run Autoruns or Autoruns64 as Administrator

With that utility, you can right click and delete any startup item in Windows, look for any Installation listed in that list, if you are unsure, please post a screenshot of any entry, before you delete it . . .

Just be careful not to delete any required process . . .

https://docs.microsoft.com/en-us/sysinternals/d...
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Power to the Developer!

MSI GV72 - 17.3", i7-8750H (Hex Core), 32GB DDR4, 4GB GeForce GTX 1050 Ti, 256GB NVMe M2, 2TB HDD

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thank you for your recommendation, I had tried but can not fix the problem

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thank you for your recommendation I tried it but still cannot fix the problem

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thank for your recommendation I had tried but cannot fix the issue 

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Hi,

Thanks for the reply. I appreciate your efforts to work on this issue.

Suggest you to create a new user account and login to that new user account to check if that helps.

Hope this helps.

Let us know how it goes.

Regards,

Srimadhwa B

Microsoft Community-Moderator

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I just wanted to give you mad respect. Thanks to you introducing this simple utility, I've managed to fix some ongoing issues on my 10-year old desktop that's running ridiculously faster and smoother than it has in ages. This is something that should be broadcast to DIY computer techs around the world with even the slightest idea of what they're doing!

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Last updated December 28, 2020 Views 3,966 Applies to: