Each time I start my computer this executable "helpfulness.exe" gets installed in %appdata%\install. Avast labels it a virus and deletes it. But it comes back. What's a good program to find where this is lurking and delete it once and for all? I ran Kaspersky tdsskiller which didn't find a rootkit. Update: A full scan of my computer located a file called "update.exe" in system startup that was likely installing helpfulness.exe on startup. No more helpfulness.exe.