He doesn't have the date settings issue, because if he did it would tell him that a wrong datatype is used.follow my steps carefully
1. open up your computer start menu
2. control panel
3. clock, language and region
4. "change the date, time, or number format"
5. additional settings
6. where it says decimal symbol you want to change it from a comma to a dot symbol then save
restart emu and it should work