There are numerous different types of spyware, however a few of the most typical are keyloggers, toolbar hijackers, and adware.
Keyloggers are a kind of spyware that can tape and track everything you type on your computer system, consisting of passwords, e-mails, and credit card info. Toolbar hijackers are a kind of spyware that can take control of your web internet browser and change your homepage and default online search engine. Adware is a type of spyware that displays undesirable advertisements on your computer.
If you think you might have spyware on your computer, it is necessary to run a security scan to eliminate it. There are lots of free and paid security programs that can do this for you. useful source