I just discovered something very annoying, which cost me quite some nerves and time.
The Austrian localised page for GeForce Experience (Aktualisiere Treiber und optimiere Spieleinstellungen)
serves a very outdated version of GeForce Experience - the download button links to GeForce_Experience_v220.127.116.11.exe which is 3 years old!!
This version is too old to update itself and also fails every time when you try to install the graphics driver … I just found out only by comparing the version numbers with the German page (de-de).
Could you please fix that?