Did you have another AV program installed previously. If so did you use add/remove programs to remove it or its own uninstall tool. the latter is really the way to go.
Also post your Operating system and service pack as well as PC specs
I had McAfee installed prior to this one...and I did not manually uninstall the older version (expired).....
It was un installed autmatically when I ran the Total Protection 2011 cd...
My computer details are -
Windows 7 Home Premium
Intel Core i3... 2.12 GHz
3 GB RAM
Hope this helps...
As the first step, please run McAfee virtual technician from here http://mvt.mcafee.com and post us your session id back here.
Also, let us know the following details
> Click on start – click on start search – then type : drivers
Open the folder that says “etc” – Right click on the file Hosts and select open
Choose Notepad to open the program with.
Make sure that the last line of the host file contains : 127.0.0.1 and any other additional entries below that could be deleted and save the host file accordingly
> Click on start – click on start search – then type : cmd
Among the options – Right click on cmd and select Run as administrator
In the command prompt window – type – ping download.mcafee.com and press enter
Let us know if you receive a valid reply from the site and not a loop back address as such as 127.0.0.1