In this post, you’ll learn more about the Error FVE_E_POLICY_PASSPHRASE_REQUIRES_ASCII – 0x803100A4 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
FVE_E_POLICY_PASSPHRASE_REQUIRES_ASCII – 0x803100A4
Win32 COM Error Error Description
Your system administrator requires that passwords contain only printable ASCII characters. This includes unaccented letters (A-Z, a-z), numbers (0-9), space, arithmetic signs, common punctuation, separators, and the following symbols: # $ & @ ^ _ ~ .