How to enable Developer Mode in HoloLens?
- Turn on your HoloLens device.
- Tab your wrist(HoloLens 2) or make a bloom gesture(HoloLens 1) to initiate Windows menu.

Windows menu.
- Open the Settings > Update & Security.

Update & Security Settings.
- Select For Developers tab on the right hand panel.

For Developers Settings.
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