someone help me, i remember i used a password to lock the setting on the antivirus desktop icon, now i could not remember the password, how can i retrieve it please?
Totally uninstall avast. Reboot and re-install.
Unless you’re on a shared computer, why use a password ???
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i tried uninstall still requesting for PW 
Totally uninstall. which requires using the removal tool:
http://www.avast.com/en-us/uninstall-utility
thanks done 
Glad I was able to help.
yea so grateful am glad as well 