# How to build your project for HoloLens?

* In the Unity menu, select **File** > **Build Settings...** to open the Build Settings window.

![Build settings.](/files/-M3il9zJ03RfHUCH_7nE)

*  In the Build Settings window, select **Universal Windows Platform** and click the **Switch Platform** button.

![Switch platform to Windows Universal Platform.](/files/-M3ilRLDChkQLxoCpl_J)

*  Click on **Project Settings** in the **Build Settings window** or the **Unity menu**, select **Edit** > **Project Settings...** to open the Project Settings window.

![Project settings.](/files/-M3im27i4-NLEUo9GAuj)

* In the Project Settings window, select **Player** > **XR Settings** to expand the XR Settings.

![ Player XR settings.](/files/-M3imFBkxoaNrefKG8k2)

*  In the XR Settings, check the **Virtual Reality Supported** checkbox to enable virtual reality, then click the **+** icon and select **Windows Mixed Reality** to add the Windows Mixed Reality SDK.

![XR settings Mixed Reality Supported checkbox.](/files/-M3imhm5B8x8eUwx_Xyf)

{% hint style="info" %}
Your projects settings might have been configured by Mixed Reality Toolkit.
{% endhint %}

* Optimize the XR Settings as follows:
  * Set Windows Mixed Reality **Depth Format** to **16-bit depth.**
  * Check the Windows Mixed Reality **Enable Depth Sharing** checkbox.
  * Set Stereo **Rendering Mode\*** to **Single Pass Instanced.**

![Optimization settings for XR.](/files/-M3inUHEUHR2-PrtMToa)

*  In the Project Settings window, select **Player** > **Publishing Settings** to expand the Publishing Settings. Scroll down to the **Capabilities** section and check the **SpatialPerception** checkbox.

![Spatial Perception enabled.](/files/-M3inuDVZOPqwLt7fIsR)

Save your project and open up the Build Settings. Click on Build button, not Build and Run. When prompted, create a new folder(ex:HoloLensBuild) and select your new folder to build your files into.

{% hint style="danger" %}
Click on Build button, not Build and Run.
{% endhint %}

![Build your project into a new folder by clicking build button. ](/files/-M3ioedvaqXI6uPm5kHY)

When your build is done, your file explorer will automatically open to the build folder you just created.


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