I have had problems as i uninstalled avira anti virus from my machine ,but today when trying to remove windows defender and windows firewall,which will not dissapear ,it said in the security that my firewall was avira, so i have been in regedit, system root and searched ,i have found a file called avi,as i am not a computer expert hence my name not a pc ,instead of im a pc lol!,im not sure if this is the file im searching for as i cannot find avira,and im thinking if i delete this i may regret it,so its best to ask some one,is there any WINDOWS components called avi in system root,or have i correctly identified the file i am looking for?