There are various kinds of spyware, but some of the most common are keyloggers, toolbar hijackers, and adware.
great post to read Keyloggers are a kind of spyware that can tape-record and track whatever you type on your computer system, consisting of passwords, e-mails, and charge card information. Toolbar hijackers are a type of spyware that can take control of your web internet browser and alter your homepage and default search engine. Adware is a kind of spyware that displays undesirable advertisements on your computer system.
If you believe you might have spyware on your computer system, it is necessary to run a security scan to remove it. There are numerous complimentary and paid security programs that can do this for you.