To uninstall McAfee antivirus software from Windows 10, there are some essential points that you need to pursue. Those are:

Go to the Cortana search bar and type Control Panel.
Choose the best match and hit the Enter button.
In Control Panel, tap on the Programs option.
Now, select the Programs and Features.
Select the McAfee antivirus from the list.
Right-click and click on Uninstall.
Wait for a while and restart your device.

For more visit - mcafee.com/activate