How to remove My Web Shield from my computer

Somehow  My web shield has entered my computer inspite of being protected by Norton How can I get rid of it ? 

You may have picked up a PUP, a Possibly Unwanted Program. While they are annoying, they do not cause damage to your system. Some people actually want the 'Features' offered by these programs. They are usually downloaded alongside a legitimate download when you do not uncheck the option for the additional download.  Norton products concentrate on malware that can damage your system, that is why some PUPs are not detected.  (credit peterweb)

> Have you recently installed any (free) software or browser extension/s?

 

How to remove “Ads by My Web Shield” adware (Virus Removal Guide)

My Web Shield is commonly bundled with other free programs that you download off of the Internet. Unfortunately, some free downloads do not adequately disclose that other software will also be installed and you may find that you have installed My Web Shield without your knowledge.

You should always pay attention when installing software because often, a software installer includes optional installs. Be very careful what you agree to install.
Always opt for the custom installation and deselect anything that is not familiar, especially optional software that you never wanted to download and install in the first place. It goes without saying that you should not install software that you don’t trust.

This malware removal guide may appear overwhelming due to the amount of the steps and numerous programs that are being used. We have only written it this way to provide clear, detailed, and easy to understand instructions that anyone can use to remove malware for free.
Please perform all the steps in the correct order. If you have any questions or doubt at any point, STOP and ask for our assistance.

 

https://malwaretips.com/blogs/ads-by-my-web-shield-removal/