It was deemed harmful by Active Virus

Hi! People,
I am sharing here a scenario that I experienced, while using my computer, an error message appeared on my computer frequently, the error message tells me that DiskAction2.exe has been terminated because it was deemed harmful by Active Virus Control.
I pasted the above context of the error, for you to refer, as I picture out on the error, its is referring to a file that is harmful, I always get this error, I am wondering what this error message means, I did not make any moves, because I am afraid what might happen to my computer, please share some ideas on this.
Thanks.
