windows 10 unicode problem

I have a program that is working with Arabic Unicode. I change it from my language dialog. but it's always show my in wrong charchters. ithink there is a problem in some fonts so how I can do restore original windows 10 pro default fonts ?
I have windows 10 pro 1809
Amin El-ZeinAsked:
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Adam BrownSenior Systems AdminCommented:
You can roll back the upgrade to 1809, but you might want to try reinstalling the Windows 10 Language Pack:
Amin El-ZeinAuthor Commented:
i have other computer that is work with 1809 without any problem
i already try to install arabic language pack but nothing changed
Amin El-ZeinAuthor Commented:
I reinstall the system and its work fine !

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