C/windows/system32/cmd.exe black window

Hello Mike,
Could you please share us a screenshot of the black pop up window appears during boot up, so we can check and help you. Please click on the link to show how to create a screenshot : http://avgread.me/1aZxsAV
Also, let us know the version of AVG you are using in your computer. Is it a paid or free version? Thank you.

Whenever I boot up my PC a black pop up window appears with the title c/windows/system32/cmd.exe. Eventually it goes away but it slows down my computer. I have AV Protection and Malware installed. What is this and how can I remove it easily?

Hi Mike,
Thank you for providing us the screenshot, we would like to inform you that this issue is not related to AVG. However, you can find a fix at https://www.cnet.com/forums/discussions/system32-cmd-exe-runs-on-startup-524765/

If issue persists, please contact Windows Support.
Thank you!

I have attached the screenshot startup c/windows/system32/cmd.exe

I am using the paid up version of AVG Internet Security version 16.74.2.60831. I als have Malwarebytes premium as well.

Hello Mike,
Could you please share us a screenshot of the black pop up window appears during boot up, so we can check and help you. Please click on the link to show how to create a screenshot : http://avgread.me/1aZxsAV
Also, let us know the version of AVG you are using in your computer. Is it a paid or free version? Thank you.

Mike, For your info, just in case that you are unaware, you can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions. 
AVG Guru