Some of the features in Windows operating system is available only if you are running a specific or later version of Bluetooth. For instance, the Nearby Share (a feature to share files between two Windows 10 computers) requires Bluetooth 4.0 or later versions. Bluetooth version number is usually mentioned in PC’s manual or product information page on your manufacturer’s website. But if your laptop is few years old, you likely have lost the manual and might not be able to find its information on the web as well. You can always contact your PC’s manufacturer to find out the Bluetooth version number, but there is an easy way to find out the Bluetooth version right from Windows Device Manager. Method 1 of 2 Check Bluetooth version number in Windows 10/8/7 Complete the given below directions to find out the Bluetooth version in your Windows laptop. NOTE: In addition to Windows 10, this method should work on Windows 8 and Windows 7 as well. Step 1: Right-click on the Start button on the taskbar and then click Device Manager to open the same. Alternatively, type Device Manager in the Start/taskbar search field and then hit Enter key to open the same. Step 2: In the Device Manager window, expand Bluetooth. Right-click on your Bluetooth adapter’s entry and then click Properties. Step 3: Switch to the Advanced tab. Here, you should see the LMP version (refer to the picture below). The LMP versions correspond to Bluetooth versions as follows: LMP 3.x – Bluetooth 2.0 + EDR LMP 4.x – Bluetooth 2.1 + EDR LMP 5.x – Bluetooth 3.0 + HS LMP 6.x – Bluetooth 4.0 LMP 7.x – Bluetooth 4.1 LMP ?8.x – ?Bluetooth 4.2 LMP 9.x – Bluetooth 5.0 For instance, Bluetooth adapter’s LMP version 7.x indicates that your Bluetooth version is 4.1. As you can see in the screenshot above, my laptop’s Bluetooth LMP is 8.4096 which indicates that the version is 4.2. Method 2 of 2 Use Bluetooth Version Finder to know Bluetooth version There is a third-party tool called Bluetooth Version Finder around to help you know the Bluetooth version. After downloading and running Bluetooth Version Finder on your PC, select a Bluetooth device from the drop-down box to know the version number. You might also like to know how to restore missing Bluetooth icon from Windows 10 taskbar.