This page describes how to uninstall and remove NCiphers software products that are not used any more.
SFTP commands for PowerShell
In order to remove SFTP commands for PowerShell right click over NCiphers SFTP commands for PowerShell in Windows Control Panel/Programs and Features and select Uninstall.
NCiphers.Crypto
NCiphers.Crypto ships in a ZIP file. It can be uninstalled by simply removing the distribution ZIP archive.