Try Free AVG.
I have downloaded the free Avast. It is listed on my desktop as Setupeng. When I try to open it to extract it I get the following box:
Error 1006 (000003EE) has occurred. Last performed operation was opening the self extract archive.
I have deleted the temporary Internet files as suggested with no luck.
This is a new Dell Dimension C521 with Windows XP op system. I took McAfee off because it interfered too much with everything (programs, internet use, etc) I use Firefox as my browser and Thunderbird as my email account. I am only partially computer literate - any help will be greatly appreciated.