Rootkits are deeply embedded malware that are typically loaded at boot time, so they are not actually in your operating system. AV software can't see them. The solution against rootkits is to have a computer using a secure boot mechanism. Your PC will cryptographically verify the boot software and simply will not allow an unknown boot program to start.
Microsoft requires PC's to support secure boot, in order to deserve the Windows 10 logo sticker.
Speech recognition would be effective for a clinician when data entry is fairly repetitive and the vocabulary used is fairly limited and over time it as become a replacement for other forms of dictation.
