Wonder why you keep getting a virus on your PC?
One of the most common reasons are usually when you decide to change from one anti-virus program to another and don’t fully uninstall the previous one or don’t uninstall it at all. The effect of leaving 2 anti-virus software packages running is potentially damaging as they cancel one another out, leaving you with no protection and susceptible to viruses.
So verify in your add/remove programs application in control panel that any trace of the original ant-virus program has been removed before installing the new one and check once you have rebooted that it is gone, some can be stubborn and require specialist removal.
Another common issue is that your protection isn’t regularly updated or scanned, just setup a schedule in the settings of the anti-virus program you are using to ensure you are fully protected.