Hi,
SOMETIMES but not maybe rarely … users needs to remove comodo with a tool because the unistall did not successfull total removal and there are issue on re-install comodo.
Comodo should relase a tool for remove fully the Comodo Internet Security!
Unofficial tool are not very a good suggestion, are not updated… you should have an official removal tool maybe also integrated in the comodo setup so user can have a great experience on remove and maybe reinstall comodo.
I have tried to remove comodo with all tool of this world but was unable to re-install on my PC because was not fully removed and the comodo setup fails or has done with irremediable issues.
My solution was turn back my Machine on the time.
Please comodo, consider to create a removal tool and increase power of the setup … give to them the possibility to scan for residues of old or previous install and remove it if is necessary so the new install can have success.