Adware Spyware Windows Defender - spyware on my computer

You might have some form of spyware on your computer if: •

. You notice new toolbars, links, or favorites that you did not want or place in your Web browser.

. Your default home page, mouse pointer, or search program changes. •

. You type the address for a specific Web site (for example, a search engine), but are taken to another Web site without notice.

. You see a lot of pop-up ads, even if you're not on the Internet.

. Your computer suddenly performs slowly or seems unstable.

Note: Some spyware might not have any symptoms at all. Its purpose is to collect information from you and your computer. Installing an antispyware program, such as Windows Defender, can help you scan your computer to find and remove spyware.

For more information, see Signs of spyware .