I downloaded the free Trial of Bullguard internet security. Bullguard scanned my system and fixed the problems, fortunatly only cookies, and did not find a virus which I had been warned about. However, it slowed the computer down by a good factor of 3 or 4, and would not allow the system to shut down. It also locked up an older program called Paperport. I uninstalled Bullguard and the system was back up to speed. I have an older computor. Pentium 4 @ 3GHz, 3 GB RAM, running Windows XP version 2002 SP 3.