Metro 2033 startup/launch Error/crash fixed

Hello gamers ,you are here because you are stucked with an error , right ?  

You are not alone , you may get some startup problems  when trying to launch Metro 2033 like hearing only the sound or get a black screen and don't hear anything , I can manage to fix this problem after some googling , so I want to share the solution with you.
About Metro 2033:

Metro 2033 is an action-oriented video game with a combination of survival horror, and first-person shooter elements. The game is based on the novel Metro 2033 by Russian author Dmitry Glukhovsky for PC , Xbox 360 and PS3 . 

PC System Requirements

Minimum System Requirements:
Dual core CPU (any Core 2 Duo or better will do)
DirectX 9, Shader Model 3 compliant graphics cards (GeForce 8800, GeForce GT220 and above)
1GB RAM
Recommended System Requirements:
Any Quad Core or 3.0+ GHz Dual Core CPU
DirectX 10 compliant graphics card (GeForce GTX 260 and above)
2GB RAM
Optimum System Requirements:
Core i7 CPU
NVIDIA DirectX 11 compliant graphics card (GeForce GTX 480 and 470)
As much RAM as possible (8GB+)
Fast HDD or SSD
Enabling Nvidia 3D Vision:
Metro 2033 utilizes NVIDIA 3D Vision with compatible cards and hardware. To play in 3D you will require:
NVIDIA GeForce GTX 275 and above recommended
A 120Hz (or above) monitor
NVIDIA 3D Vision kit
Microsoft Windows Vista or Windows 7

Ok , now lets move to the solution .

Solution :

1. First of all install This tools and use it to clean all your Nvidia/ATI and physix driver (the normal uninstaller dont remove all the files from your system).
2. Install the latest Nvidia / ATI driver for your graphic card.
3. Install the latest physix driver from the nvidia website.
4. install the latest C++ Redistributable Package."vcredist_x86_sp1_atl_4053.exe"
5. Install the latest directx from HERE.
6. delete the user.cfg from your user account folder if you cant find the file do a search in your "\Documents and Settings\"  folder.

If this doesnt fix your problem try these tricks from the net:

1. If you are running on a dual monitor, unplug the secondary monitor before launching the game.
2. If it fails to load after the first run, delete the user.cfg file from the game’s installation directory and try again and.