# Sideloading Unlocker

![Preview](MetroUnlocker.png "Sideloading Unlocker")

## Unlock signed sideloading on:

- Windows 8.0 and up


## Unlock full sideloading on:

- Windows 8.1 Pro and up

**Development sideloading** might take a while to activate. If it doesn't activate quick enough, you can use **Product Policy Editor** to disable **SPPSVC**, set the system clock to 2026, attempt sideloading until it activates, then revert the system clock and re-enable **SPPSVC**.

**Known bug:**

If your disk has **0 bytes** of free space, the system might fail to write the new tokens file, leaving the `tokens.dat` file empty and when SPPSVC starts, it will recreate the file but everything will be deactivated—including Windows itself.

MetroUnlocker always attempts to create a backup of your tokens before modifying them. Make sure you have at least **30MB** free of space before trying to activate sideloading. If something goes wrong, just restore the tokens.dat file from the backup to `C:\Windows\System32\spp\store\2.0`. In worst-case scenario, you can reactivate whatever you need activated again with **TSForge**.

Feel free to reach out to me or create an issue if you need help.

**Huge thanks to [TSForge](https://github.com/massgravel/TSforge)** for making this possible by reverse-engineering **SPPSVC**!

Thank you Zar!