Dell :: N5010 - Unable To Install Bluetooth Driver

I am using Inspiron N5010 with service tag : <ADMIN NOTE: Service tag removed per privacy policy>

I earlier had windows 7 in which my laptop's bluetooth was working fine. Then i installed windows 8 release preview and even in that bluetooth was working fine. yesterday i installed windows 8 pro with WMC in it and since then the bluetooth isn't working.

My wifi is working fine.

1. I even checked in the BIOS....internal bluetooth is enabled.
2. I tired to install the driver by downloading it fromURL
3. I even tried to this method

Access device manager

- Click ‘Start’, and then click ‘Control Panel’
- Click ‘Hardware and Sound’
- Click ‘Device Manager’
- ‘User Account Control’ dialog box appears.
- Click ‘Continue’
- Device Manager Page opens up.
- Locate a category called ‘Bluetooth Radios’
- If not found, locate ‘Network Adapter’
- Also observe if it has a yellow mark besides any of the device listed
- Browse through the whole list to check for any other item listed with a yellow mark
- Capture the item with the yellow mark

4. I even tried this method

- Click the following link to download the most updated driver for the Bluetooth: [URL]
- Save the folder (zipped folder) on the 'Desktop screen'
- Double-click the new icon on the desktop labeled R241623.exe
- The Self-Extracting window appears and prompts you to extract or unzip to C:DELLDRIVERS
- Click Ok
- After completing the file extraction, if the Self-Extractor window is still open, close it
- Open the following path: C:dellDrivers31N70Win64 (Follow steps mentioned below)
- Click 'Computer' and drive letter 'C'
- Locate folder 'dell' and double click it
- Locate folder 'Drivers' and double click it
- Locate folder '31N70'
- Locate folder 'Win64' and double click it 
- Locate file Inst (Refer to the image below) 
- Right click file 'Inst'- Click 'Run as an administrator'
- Click 'Yes' to continue if prompted with 'User access control' message
- Follow through with the installation as per the screen instructions
- Finish the installation and check for the Bluetooth functionality
- If issue persists, try using the 'setup' file to install drivers in compatibility mode (Next Step)

Install 'Setup.exe' file in 'compatibility Mode'

- Navigate to C:dellDrivers31N70Win64
- Right click ‘Setup’ file and click ‘Properties’
- Click “Install in compatibility mode’
- Click on Application and select ‘Troubleshoot Compatibility’
- Next, click on ‘Troubleshoot Program’
- Click on Program worked in earlier versions of Windows
- Click on ‘Windows 7’
- Click on ‘Start the Program’
- Do not hit ‘Next’ until the installation completes
- Once the installation completes, click on ‘Next