(Note that clicking on the download links below will open up
a new browser window.)
Download
Spybot - Search and Destroy
Download
Ad-Aware SE Personal
Download
Microsoft AntiSpyware(beta)
And here are some guides to using the above programs. These guides are very basic and just cover basic scanning of a PC.
For more in depth help, consult the help guide/menu that came with the program or search online for more information.
Guide for Spybot - Search and Destroy
Guide for Ad-Aware SE Personal
Guide for Microsoft AntiSpyware(beta)
Safe Mode
If you think your PC is badly infected - your getting a lot of pop ups, you can't start the task manager, your system is running very slow, - then you should start your PC in Safe Mode and run all 3 programs one after another. To start in Safe Mode, you need to press the F8 key right before Windows starts. On most PC's this will be right after the BIOS screens that first show up when you turn your PC on. Sometimes this information will not show on screen, you'll just have a black screen until Windows starts loading. You just need to press F8 a few times while your screen is black. It might take several reboots to get it right, but eventually you'll have a DOS screen listing several choices one of which will be Safe Mode. If you get this DOS screen but don't see a choice for Safe Mode then press F8 again and you should see it.
Once you select Safe Mode, it will take much longer than usual for your PC to come up. That's ok, just be patient.
After it is up and you have logged in, run all three programs. Then reboot
your PC and log in normally to check things out.