What are some of the most common kinds of spyware?

There are various types of spyware, but some of the most typical are keyloggers, toolbar hijackers, and adware.

more tips here Keyloggers are a kind of spyware that can track and tape whatever you type on your computer, consisting of passwords, e-mails, and charge card details. Toolbar hijackers are a type of spyware that can take over your web browser and alter your homepage and default online search engine.  great post to read Adware is a kind of spyware that displays undesirable advertisements on your computer.

If you think you might have spyware on your computer, it is essential to run a security scan to remove it. There are many free and paid security programs that can do this for you.