Did you make sure on window 10 you had installed 1803 update?
Below is the information you requested
In Region & Language
Region=United States
Languages= English(united states)
Below output from.net
Output from
Threading.Thread.CurrentThread.CurrentCulture
{en-US}
Calendar: {System.Globalization.GregorianCalendar}
CompareInfo: {CompareInfo - 1033}
CultureTypes: SpecificCultures Or InstalledWin32Cultures Or FrameworkCultures {70}
DateTimeFormat: {System.Globalization.DateTimeFormatInfo}
DisplayName: “English (United States)”
EnglishName: “English (United States)”
IetfLanguageTag: “en-US”
IsNeutralCulture: False
IsReadOnly: True
KeyboardLayoutId: 1033
LCID: 1033
Name: “en-US”
NativeName: “English (United States)”
NumberFormat: {System.Globalization.NumberFormatInfo}
OptionalCalendars: {Length=2}
Parent: {en}
TextInfo: {TextInfo - 1033}
ThreeLetterISOLanguageName: “eng”
ThreeLetterWindowsLanguageName: “ENU”
TwoLetterISOLanguageName: “en”
UseUserOverride: True
Output from
Threading.Thread.CurrentThread.CurrentUICulture
{en-US}
Calendar: {System.Globalization.GregorianCalendar}
CompareInfo: {CompareInfo - 1033}
CultureTypes: SpecificCultures Or InstalledWin32Cultures Or FrameworkCultures {70}
DateTimeFormat: {System.Globalization.DateTimeFormatInfo}
DisplayName: “English (United States)”
EnglishName: “English (United States)”
IetfLanguageTag: “en-US”
IsNeutralCulture: False
IsReadOnly: True
KeyboardLayoutId: 1033
LCID: 1033
Name: “en-US”
NativeName: “English (United States)”
NumberFormat: {System.Globalization.NumberFormatInfo}
OptionalCalendars: {Length=2}
Parent: {en}
TextInfo: {TextInfo - 1033}
ThreeLetterISOLanguageName: “eng”
ThreeLetterWindowsLanguageName: “ENU”
TwoLetterISOLanguageName: “en”
UseUserOverride: True