softwareupdate.exe, and it's process, Software Application, have not been tested thoroughly enough yet to state definitely if they are harmful or not. Has softwareupdate.exe been found or your PC? If you know what this file does, please post a comment with what you know.

Adware and viruses can infect your PC very easily, even if you only surf the internet.

Scanning your PC for free is the best way to avoid major problems in the future.