The PowerShell Gallery and the command Install-Module are natively available in Windows 10 and Windows Server 2016. If you run Windows 7, 8, Server 2012 & below you can either install PackageManagement from powershellgallery.com or simply skip to method 2.
To use the Install-Module you need an elevated PowerShell window. This will install the module globally for everyone to use on the machine.
To install the module for the current user of when you don’t have administrator access to the host you must run the following command
Install-Module PSDatabaseClone -Scope CurrentUser