MetroUnlocker

Unlock signed sideloading on:

• Windows 8.0 and up

Unlock development sideloading on:

• Windows 8.1 Pro and up

Development sideloading takes a while to activate. If it doesn't happen automatically, use Product Policy Editor to disable SPPSVC, set the system clock to 2026, try sideloading until it activates and revert the clock and enable SPPSVC again.

Huge thanks to TSForge for making this possible by reverse engineering SPPSVC!