This is very related to this question: What damage can a malicious .iso file cause without explicitly executing it?
An ISO file got downloaded to my desktop. I immediatly tried to delete it, but when I did, I got the error message "Can't delete this file. This file is in use by System. Close the file and try again."
I never opened the file, how can it be in use? Has it harmed my computer? Am I safe?
PS: I rebooted Windows into safe mode with command prompt and deleted the single file from there, but if it did something before I deleted it, I do not know what to do.