I need to delete this avast from my computer and Im having trouble. my email address is peppersg@att.net
Are you sure you have the genuine Avast?
If you do, the uninstall utility linked by Marc57 will do the job, you may have to run it in safe mode.
Some users don't know to disable the self protection module. This will cause problems with uninstalling. Right click the blue ball, select "settings", then "troubleshooting", then disable the self protection module. It should uninstall normally. Wouldn not hurt at all to run the uninstall utility (in normal mode) following this.
If you don't mind my asking, why do you need to uninstall it?