Be Careful ! The most highly regarded industry standard software for protecting your machine, at this point in time, can be found through merijn.com and annoyances.org, with links to majorgeeks.com.
For starters, here's a few programs I use:
AVG Free or AVG Pro edition virus stuff (also looks for malware in your e-mail.) And tends to have less overhead and better reaction time than Norton/symantec and McAfee... though symantec will give you free Fxbugname programs, they of late have tended to be a bit unresponsive to less-than corporate buyers, IMHO. McAfee used to be ok, but has always been a resource hog.
ALSO.....
Lavasoft AdAware, SaferNetworking SpyBot Search and destroy, and RegSeeker are your next best bets. RegSeeker has two or three versions that find many more registry errors than most other programs. Same for HijackThis.exe - very useful program if you know how to use it.
Another program you might consider is the Beehive RegCompact.
Popups come from (a)Mousetrapping and (b)Harvesting information from the cookies you trade, along with the "surf-n-trap" schema.
FYI....
Many MANY MANY of the programs that are available on the web are actually malware in themselves, claiming to help you, but actually signing you up for their own particular sponsor's woes.
That's generally the way things like the "WeatherBug" and several other tools can REALLY ruin your computer. that program is a P-O-S ! (go to noaa/nws and get the infor yourself!)
Many toolbars are in reality nothing more than hijackers...
for example....
Remember when Yahoo! wasn't loaded down with all the stinking adverts? For all the cool stuff they offer... they have slowly changed since Mr. Cuban sold the company. Now they want you to do something "special" to get their "advertisment free" version....
Go to the Yahoo! privacy policy... and read the sections about web beacons.
I do not and WILL not use their toolbar, or their messenger... and don't even give them useful information about who I really am. And I'm still tempted to go to some other free mail service, because they participate in harvesting information.
while Google might be fine right now... how long before they succumb to the things their sponsors expect to get ? If you've given them information now, in order to use their "toolbar"... (such as surfing habits, useful IP addresses, E-Bay information,etc.) how long will it be before you can find your own information plastered across the
www... (go to zabaware.com now and see how much they already know about you!)
Just a few thoughts for the underprepared www' ers
Jason