Ending Popups

[Joe Smith]

Everytime I start up my computer a porn site comes up. I
have to "ctrl/alt/delete" to get ride of it and get to
yahoo. Then, when I'm surfing- non-porn- the same site
will come up again. I must repeat the process. How can I
get rid of this?
Thanks

 

[Kevin]

You have been infected with any one of a number of viruses, trojans, worms,
popups and/or other such malware. Download and install Ad-aware, Pest
Patrol, Spybot Search and Destroy and a good firewall and an anti-virus
application. Make sure you have installed all the latest critical updates
from Windows Update.