How do I turn on Bluetooth on a Dell Latitude E6410?

I assume you have confirmed that this E6410 has a Bluetooth module installed. It is an option, and even if it was supposed to come with one, Dell has made build errors in the past.

The Dell warranty site will show (Dell Warranty Check) what the factory says was installed . There is a tab for original configuration. I have seen a user pull hair with a D830 trying to get Bluetooth only to find it was not there.

Also, (assuming you're using Windows 7) if the Bluetooth drivers are installed, then you can right click on the Windows Taskbar, select Properties from the pop-up menu, now in the Taskbar tab's Notification Area select Customize..., see/make-sure that the Bluetooth Icon can be displayed on the Taskbar. After that (assuming that it hadn't already been visible on the Taskbar), you should be able to enable/disable Bluetooth from its System Tray Taskbar icon.

Head into Device Manager and check to see if the bluetooth drivers are installed. I'm guessing you are using Windows 7, so go to the stat menu, right-click 'Computer' and press 'Manage'. This will open the Computer Management window, from here click Device Manager on the left coloumn. There should be a Bluetooth Radios drop down menu.

If that is there and there are no question marks next to the items, it means the bluetooth drivers are installed and it should be working. You should also see some bluetooth items under the Network Adapters drop down.

If you cant see the Bluetooth Radio's drop down, it may be because the drivers arent installed. If that's the case, the radio should be listed somewhere down the list with a question mark next to it. Go to the manufacterurs website and find the drivers for the bluetooth module and that should fix it.