Dell Precision M6400 Laptops & Desktops Graphics, Network & Wireless, Audio, Camera & Webcam, Bluetooth and Modem Drivers and Others Precision M6400 Drivers by Devices. Download free Dell Precision M6400 Drivers, Dell drivers is compatible with all Windows, and supported 32 & 64 bit operating systems. Download drivers for Bluetooth device for Dell Precision M6400 laptop for Windows 7, XP, 10, 8, and 8.1, or download DriverPack Solution software for driver update.
Hi,
Thank you for posting on Microsoft Community. I understand the inconvenience you faced. I will certainly help you with this. Kindly follow the below given steps and check if issue is resolved.
Method 1:
Install the Bluetooth driver from the manufacturer’s website.
You can logon to the manufacturer website and install the driver which is compatible with Windows 8.1
You can also refer to the article mentioned below for more information.
Why isn't Windows finding my wireless device?
Dell Precision M6400 Video Card
Method 2:
I suggest you to try the following steps and check if it helps/
a.Press Windows key + R and type Regedit .
b. Click on the plus signs (+) next to the following folders.
c. Go to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E965-E325-11CE-BFC1-08002BE10318}
d. Right Click on the key in the Left Pane - Export it so you can reverse in case of a mistake. Save as Remove-Filters.reg (any name is ok with .reg as extension).
e. In the Right Pane look for any of these = UpperFilters - LowerFilters - UpperFilters.bak - LowerFilters.bak
Dell Precision M6500 Bluetooth Driver
f. If any exist Right Click on them – Delete
Note: This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: http://windows.microsoft.com/en-US/windows7/Back-up-the-registry
Precision M6400 Drivers
Hope this helps. Please post back with the status of the issue and we will be glad to assist you further.
Dell Precision M6400 Bluetooth Driver Windows 10
Thank you.