Windows 7: BSOD It Occurred Randomly, error 0x0000003b

Code:

Bluetooth Peripheral Device	BTHENUM\{84A1E9B8-12BA-4A9C-8AB0-A43784E0D149}_LOCALMFG&0000\8&496CA1D&0&000000000000_00000001	The drivers for this device are not installed.
Bluetooth Peripheral Device	BTHENUM\{00005557-0000-1000-8000-0002EE000001}_VID&00010001_PID&00EE\8&496CA1D&0&1886AC6782AD_C00000000	The drivers for this device are not installed.

Please make sure all BlueTooth device drivers are installed.

• You have a number of unnecessary programs running on your system. Please Troubleshoot Application Conflicts by Performing a Clean Startup and leave only avast! items set in startup and services. Make sure all Microsoft services are hidden prior to disabling other services.
  
  
• Spybot Search and Destroy is not the best malware/spyware utility. Take a look at Good and Free system security combination. for better options.

You only had one recent .dmp which makes it difficult to find patterns. The one crash was DirectX/graphics card related. DirectX comes installed with Windows, so this may indicate Windows corruption. It may also be that you have corrupted drivers or a graphics card hardware problem.

• If you are overclocking any hardware, please stop.
  
  
• Check Windows for corruption. Run SFC /SCANNOW Command - System File Checker up to three times to fix all errors with a restart in between each. Post back if it continues to show errors after a fourth run or if the first run comes back with no integrity violations. Use OPTION THREE of SFC /SCANNOW Command - System File Checker to provide us with the sfcdetails.txt file if errors occur.

Follow the steps for Diagnosing basic problems with DirectX. To re-install your display card drivers as outlined in the DirectX link, use the following steps.

1. Download the drivers you want for your display card(s)
2. Click Start Menu
3. Click Control Panel
4. Click Uninstall a program
5. For NVIDIA:
   • Uninstall the NVIDIA Graphics Driver (this should uninstall all NVIDIA software and drivers)
   • Restart your computer
   • Make sure NVIDIA 3D Vision Driver, NVIDIA 3D Vision Video Player, NVIDIA HD Audio Driver, and NVIDIA PhysX System Software are not still listed under Uninstall a program through Control Panel
   • If any remain of the above, uninstall one at a time
   • If asked to restart after uninstalling any of the above, do so, and continue uninstalling any remaining NVIDIA items until all are removed
6. Restart your computer after uninstalling drivers for all display cards
7. Install the driver you selected for the display cards once Windows starts

Remember to try multiple versions of the graphics drivers, download them fresh, and install the freshly downloaded drivers.

You should Repair Install Windows 7.

Steps 1-3 and 5-7 of Clean Reinstall - Factory OEM Windows 7 will help you get installation media, backup any important files (just in case), and obtain your license keys for software (just in case) and the Windows license key (you will need this key).