Do you want to uninstall Comodo antivirus?
You should remove it by using their proper Comodo removal tool.
If you are tring to uninstall Comodo from the control panel, there might be a possibility that it doesn’t remove completely. Actually, some of the registries entries/files/folders may remain which can be occurs problems like Computer freezing, Unable to connect internet, computer speed slow and also might be getting installation errors.
We suggest you, always use Comodo Removal Tool if you want to remove Comodo Security from your computer completely. Download the removal tool and uninstall it completely.
Here’s the direct link to know how to uninstall Comodo software manually: