Hi,
This issue occurred when the data in the registry for the device and its driver have been damaged. It can be also caused due to an outdated device driver.
Method 1:
I suggest you to uninstall the Bluetooth driver from the device manager and install the latest driver for the device from the manufacturer website.
Step 1: Uninstall and Reinstall Bluetooth Driver.
Please follow the steps given here to uninstall and then reinstall the Bluetooth driver.
a) Press Windows key +Xkey when you are at desktop.
b) Select Device Manager.
c) Find and double-click Bluetooth driver from the left panel to uninstall
d) Right-click the device, and click Uninstall.
e) Windows will prompt you to confirm the device’s removal. Click OKto remove the driver.
f) After the uninstallation is complete, reboot your computer as soon as possible.
Step 2: 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?
http://windows.microsoft.com/en-us/windows-8/why-isnt-windows-finding-device
Method 2:
I suggest you to try the following steps and check if it helps/
a. PressWindows key + R and type
RegEdit .
b. Click on the plus signs (+) next to the following folders.
c. Go toHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class{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
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
Hope this helps.
Please post back with the status of the issue and we will be glad to assist you further.