Hello everyone,
How do I change the default paper size to A4, it is very annoy that everytime I have to change before I print. In printer setting, device setting, I selected to A4 (from start menu), but still not working, everytime (I turn on computer) I print something, I need to adjust it [Printer -> Properties -> Advance, paper size is always Letter]

(HP 6L printer, I do not live in US.)
Thanks.

You have to modify the "DEFAULT" properties of your printer or you will change that setting for the rest of your life.

Start menu | Settings | Printers | right click your printer | Printing Preferences | Advanced Tab | In the Paper Output entry, click on the drop down list (which is now showing letter) and select A4 | click OK to exit advanced settings | in Printing Preferences click Apply and OK

Now you are permanently set for A4.

Very much appreciated. Thanks.