Win10 system side loading mode is what

The so-called Win10 side loading mode (function) refers to the operating mode of third-party applications that are not tested by the Microsoft App Store (Windows Store) without any restrictions. In other words, install the Test Android app (Android Apps) or the Apple app (Mac/iPhone Apps) on the Windows operating system in this mode. Windows 10 is much simpler than Windows 8 (which requires forced open).
Open Win10 side loading mode, for Windows mobile devices, you can install and use third-party applications without jailbreak. In fact, this is also an effective means for Microsoft to promote its own mobile devices. As mentioned at the beginning of the content, you can turn on sideloading after clicking on the update and security settings in Win10.