Chocolatey is an on Nuget based package manager which runs under Windows operations systems.
Run Get-ExecutionPolicy in Powershell as an Administrator. When it returns an something like Restricted, execute Set-ExecutionPolicy AllSigned. Accept with Y.
After that execute iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1')) and accept with A.
Install a package
This example is about the package (software) FileZilla. All available packages can be found here.
Remove a package
Update a package