To allow input control in the Windows 10 Connect app, please follow these steps:
1. Open the Connect app on your Windows 10 device.
2. On your Android device, ensure that it is connected to the same Wi-Fi network as your Windows 10 device.
3. On your Windows 10 device, click on the Notifications icon in the bottom-right corner of the taskbar (it looks like a speech bubble).
4. In the Notification Center, you should see a notification from the Connect app. Click on this notification to expand it.
5. Click on the "Allow input" button in the expanded notification. This will enable input control for your Android device.
If you don't see the "Allow input" checkbox in the Connect app notification, make sure that your Android device is...