Thanks to the Technet team for this great article: “Configuring Scheduled Tasks in Powershell”. The creation of a task planned by GPO is not always feasible, the workstation may not be a member of the domain or may never be connected to the network. To overcome this problem, it is possible to perform the creation directly in Powershell.

So we have at our disposal two applets:

• One for creating configuration options

• One to apply configuration options

http://blogs.technet.com/b/heyscriptingguy/archive/2015/01/14/use-powershell-to-configure-scheduled-task.aspx