One of the new features in Windows 10 is the ability to automatically change the default printer to whichever was last used. This setting is On by default.
To turn Off the setting and keep the default printer to one you manually choose, follow these steps:
- From the Start Menu, choose Settings.
- In the Settings Window, click on Devices.
- Click on Printers & scanners and under Let Windows Manage my Default Printer, toggle the setting to Off.
To manually choose your default printer, scroll further down the Window and click on Devices and printers.
In the Devices and Printers Window, just right-click the Printer you wish to make Default and choose Set as default printer.