Originally posted by Parallax I have a program called nircmd. Essentially a simplified command line program. It disappears from my HD about twice a year for no apparent reason.
Many of the nirsoft programs are rated as malware as they do low level stuff or pose security threats such as accessing stored passwords or protected registry entries. You have to add exceptions to you virus/malware/internet security programs to leave them alone. Some browser blockers will even block the nirsoft website as a malware site.
If they disappear check you virus quarantine list and restore them while adding an exception.
As far as SecureDelete goes you probably need to wait until ASUS updates it to be Windows 10 "safe".