Turn it off and take it to an expert for a cleanup.
People who use the computer are often simply known as "users".
Just log out the unknown user account from panel
Computer users who are not computer professionals are often referred to as "end users" or "casual users." They typically use computers for basic tasks like browsing the internet, using office applications, or consuming media, without having specialized technical skills. In some contexts, they may also be called "lay users" or "non-technical users."
it is a bad practice to download unknown files to the computer
Brain computer interfaces allow computer users to communicate and run computer commands using specialized computer equipment that is placed on the users head.
The People Who use The Computer. Therefore Them Being The Users :)
the operating system provides the means for users to interact with a computer
It is not important for computer users to back up their data and documents.
Most operating systems native to the computer system allows users to communicate with the computer system
Keyboard users may be musicians or internauts using a computer.
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