Many users faced an issue when Bash in Windows 10 does not install properly. Before downloading, instead of the confirmation character "Y" it shows a question mark. When this happens, this is how it looks:
C:\Users\username>bash
— Beta feature —
This will install Ubuntu on Windows, distributed by Canonical
and licensed under its terms available here:
https://aka.ms/uowtermsType "?" to continue: ?
????? ??????????, ????????? ????????. ??????????? ?????…
Here is how to fix it.