Summarize this article in one sentence.
Click the Windows logo in the bottom-left corner of the screen. You can also right-click Start to bring up the advanced settings pop-up menu. Type in device manager, then click Device Manager in the Start menu. The Device Manager window will open. If you right-clicked the Start icon, just click Device Manager in the pop-up menu that appears. If you find a "Bluetooth" heading near the top of the window (e.g., in the "B" section), your computer has built-in Bluetooth capabilities. If you don't see the "Bluetooth" heading, your computer does not have built-in Bluetooth capabilities.

Summary:
Open Start . Open Device Manager. Look for the "Bluetooth" heading.