blinking problem

I've had problems with norton causing my computers to be slow and not responsive. So I don't know what virus software is best at this time.

Julie,

From the moment the antivirus is running, it slows down the computer. It's normal. If it is not responsive, well you should check your configuration. The applications require more and more memory. First thing is to check if you don't have too many process running at the same time. Close the applications you don't need.

Sandrine