We're not sure yet if sqlagent90.exe and SQLAGENT90 - SQL Server Agent are adware, spyware, or some other type of virus. Has sqlagent90.exe been found or your PC? If you know what this file does, please post a comment with what you know.

If you use the internet, there is always a chance that a virus or malware could be on your PC without you knowing it.

This free PC scan is probably the best way to make sure you don't experience future issues with bad files.