There is no Bluetooth icon beside the "date/time" column in Windows 7, so could not get know about the status of Bluetooth.
The above symptom may occur on the following operating system:
Microsoft Windows 7
1. Move the cursor to the right bottom corner, and choose the device by clicking the triangle in the red rectangle, as Fig.1 showed.
2. Click "Customize".
3. Click and choose "Show icon and notifications" in the dropdown menu of "Bluetooth Devices", as Fig.3 showed. Click "OK" to exit.
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