目前在ARM版Windows上使用凭据提供者还存在一些问题，不过可以对凭据提供者的代码进行修改以使其在ARM版Windows上正常工作。

以CredUIPromptForWindowsCredentials API为例，可以使用下面的代码实现在ARM版Windows上的凭据提供者工作：

// Get the credential provider for Windows (assume x86/neon version).
PCREDENTIAL_PROVIDER pCredProv = new CWindowsCredentialProvider();

// Release and get the credential provider for ARM.
pCredProv->Release();
pCredProv = new CWindowsCredentialProviderARM();

// Show the prompt using the credential provider for ARM.
DWORD authResult = ERROR_CANCELLED;
PCREDENTIALS pCreds = NULL;
BOOL bSave = FALSE;
HRESULT hr = CredUIPromptForWindowsCredentials(
    &uiInfo,                               // Pointer to credential prompt information.
    0,                                     // Auth package.
    NULL,                                  // Reserved.
    0,                                     // Flags.
    pCredProv,                             // Pointer to credential provider.
    NULL,                                  // Pointer to out-of-band data.
    0,                                     // Size of out-of-band data.
    &pCreds,                               // Receives the credentials entered by the user.
    &bSave,                                // Whether to save the credentials.
    &authResult);                          // Authentication result.

其中，ARM版的凭据提供者CWindowsCredentialProviderARM需要自己实现。