In addition, a lot of them are fake and will actually install more malware and spyware onto your computer.
Basically, though, the services use a simple antivirus scanner/remover.
The way this works is that you will have to use another computer to download an ISO image file from an anti-virus company like Microsoft or Kaspersky and then burn it onto a disc.
You have probably seen those ads online advertising a service that will scan your computer for free and magically clean your computer as well as make it 20 times faster.
Well, those websites will scan your computer, which is true, however, the majority of them will charge a large fee to get rid of all of the errors found in the scan.
For example, you can scan your computer with one virus removal program, remove the viruses and then turn around a scan your computer with a different program, which will catch even more viruses that the first program didn’t pick up.
So the best thing to do when you have a nasty infection with multiple viruses, malware or spyware on your system is to run multiple programs.
In my opinion, you should run SUPERAnti-Spyware first, then Malware Bytes Anti-Malware followed by Spybot and Ad-Adware.