Cloud Files API支持的Windows版本及Windows 8.1兼容性问询

Great question! Let's break this down clearly based on Microsoft's official guidance:

• Native Cloud Files API support on Windows 8.1? No

  Microsoft confirms the Cloud Files API (Cloud Sync Engine) was first natively included starting with Windows 10 Version 1709. Windows 8.1 does not have this API built into its core system, and there are no Windows updates or optional components you can install to add native support for it.

• Why does OneDrive work on Windows 8.1 then?

  OneDrive leverages the Cloud Files API but includes its own custom compatibility layer. This means the app bundles the necessary functionality internally, rather than relying on the system-native API present in newer Windows versions. That's why it can run on Windows 8.1 even without the native API being available.

To sum up: If you're developing an application that depends on the native Cloud Files API, you won't be able to target Windows 8.1—since the API simply doesn't exist in that OS. Only apps that package their own compatibility logic (like OneDrive) can deliver similar sync functionality on Windows 8.1.

内容的提问来源于stack exchange，提问作者Mykola Pyliak