
Re-read carefully.
If you have a real USA keyboard it's got one letter/punctuation key less (marking keys). I certainly have had US keyboards (laptops and separate with AltGr, though it's not always marked
and may be just Alt if you have the default US Layout installed by default in Windows. Without having at least the US International Setting even using Ctrl -RghtAlt may do nothing instead of accented letters.
There are two Alt keys. Control-RightAlt = AltGr. It gives alternate (mostly accented letters).
Switch your keyboard to US International. It's 100% the same markings on the keys as a regular IBM style USA Keyboard.
Try rightAlt a, i, e, o, u, If that does nothing you have a substandard old style USA keyboard, so then try Ctrl-RightAlt a, i, e, o, u,
Should be á í é ó ú
The ` and some other punctuation keys need pressed twice, or the next letter (perhaps only vowels) get accented à ì è ò ù
Less than 12 of the world lives in the USA. A lot of USA people speak Spanish, maybe some French.
What do you need TWO Alt keys for (or even one?)? Apple's AltGr is the four leaf Clover symbol key.
You know you can trim replies too?
Windows and some other things default to the dumbest US Keyboard layout, the USA Date Format, Letter of A4, and US Currency when a currency symbol is to be automatically inserted. It's been wasting the time of the rest of the world for 30 years on setting up PCs and Printers.
SOME OSes at install time first use ask:
Keyboard physical layout and optional sub layout
Language & Country: Canadians might use British English, US English, Canadian French. Irish people usually use British English. Switzerland has four main languages, but developers might use English. Belgium might have three languages, certainly French and German, some might even prefer Dutch.
As well as Time Zone. At least MS has been asking the Time Zone for over 20 years.
See Regional and Language Settings in Windows. In some OSes, the keyboard layout is in Keyboard Settings, I think in Windows it's in Language, but Dates, Currency, default paper etc is in or affected by Regional settings.