在 Windows 10 上部署 Windows 8.1 商店应用

Deploying Windows 8.1 store apps on Windows 10

我正在 Windows 10 上侧载 Windows 8.1 应用程序。我知道 Win 8.1 应用程序在通过 Windows 8.1 OS 部署时需要侧载密钥,但由于Windows 10 "Sideload apps" 上的新功能还需要侧载密钥吗?

没有。不需要。

根据this article

With Windows 8, Microsoft copied Apple’s iPad and iPhone model, forcing you to get your apps from Microsoft’s curated store. Windows 10 shifts back to a more PC-like, Android model — you can get apps from anywhere you like.

根据technet.microsoft.com

In Windows 10, sideloading is different than in earlier versions of Windows:

You can unlock a device for sideloading using an enterprise policy, or through Settings
License keys are not required
Devices do not have to be joined to a domain