Executable aupdate.exe is an essential component of LiveUpdate tool, which is required by most Symantec antivirus, system or security related software. LiveUpdate uses aupdate.exe to connect to the Internet, check for available updates, download and install them. File aupdate.exe is required to keep Symantec software up-to-date, provide the most recent functions and prevent instability issues or other serious problems. Do not, under any circumstances, delete aupdate.exe!