After uninstall CA and install McAfee
My laptop could not connect to Net. Windows live message could not launch
too.

I called McAfee support and un-install McAfee,
the Windows live message show up and the laptop can connect to net

but could not launch IE 8 by click its icon.
I can only launch the IE8 with 'run as administrator' or in safe mode.

I appreciate any help and suggestion

Thanks

Chen