as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
list common signs of a virus infection.
user
common signs of a virus infection include: 
- sluggish or sluggishness of the device
- unexpected shut down or restart of the device
- strange or unexpected error messages
- slower than usual internet connection
- unusual activities such as elevated internet traffic
- unusual pop-up windows
- new programs that have been installed without the user's knowledge
- reduced storage space
- unresponsiveness of the device
- change in the browser settings
- change in the home page
- artifacts and odd files in the system
assistant