• To choose a default printer, select the Start  button and then Settings . Go to Devices > Printers & scanners > select a printer > Manage. Then select Set as default. If you have Let Windows manage my default printer selected, you'll need to deselect it before you can choose a default printer on your own.
  • In Windows 10, your default can be the printer you last used. To turn on this mode, open Start  and select Settings  > Devices > Printers & scanners. Select the checkbox beside Let Windows manage my default printer.


https://support.microsoft.com/en-us/help/4028622/windows-10-how-to-set-a-default-printer#1TC=windows-7