What is anti-spyware software?

 Anti-spyware software is a type of computer security software designed to detect and remove spyware, which is malicious software that collects information about a user's activity without their knowledge or consent. Anti-spyware programs typically scan a user's hard drive and other storage devices, as well as running processes, to identify and eliminate spyware, as well as other types of malicious software such as adware, Trojans, and other forms of malware.