When we talk about Adware and Malware removal we usually refer to the malicious programs installed secretly on your computer without your knowledge and consent.
They usually have the tendency to give you pop up advertisements which are in disguise of legitimate advertisements and other things.
Once installed, they start eating into your personal information and surfing activities without your knowledge, and without you being aware of it.
They can steal your bank account numbers, credit card details, passwords, emails, instant messages and even more confidential personal information.
Some adware and malware infections are known as "malware" (which stands for Malicious Ware), while others may not be so easy to identify as Malware, but still cause your system and files destruction.
For instance, there is a type of malware called Fake antivirus which shows false security alerts to scare you into buying fake software and false security protection, such as "Real time protection" (which is also known as Real-Time Virus Protection).