How to remove malware and spyware using hijackthis?

How to remove malware and spyware using hijackthis. 
What is Spyware and What does it do?

Malware refers to any type of malicious software that tries to infect a computer or mobile device. Hackers use malware for any number of reasons such as, extracting personal information or passwords, stealing money, or preventing owners from accessing their device.

Spyware is a type of malware that is installed on a computer without the knowledge of the owner in order to collect the owner’s private information. Spyware is often hidden from the user in order to gather information about internet interaction, keystrokes (also known as keylogging), passwords, and other valuable data. Spyware can also negatively affect a computer’s performance by installing additional software, redirecting web browser searches, changing computer settings, reducing connection speeds, changing the homepage or even completely disrupting network connection ability.

HijackThis inspects your computers browser and operating system settings to generate a log file of the current state of your computer.