I can play the toturial but if i want to play the real game it just closes and says nothing. I tried to restart, when i had to pick a difficulty it just closes again. This issue continues to appear. Please help.

Have you tried running it as Administrator yet?

Doesnt help at all

No errors at all. I simply start the game in the launcher, it starts i click new game then click an difficulty after that the schreen goes black for under a second then it goes back to the desktop.

Windows 7 64 bit
Amd fx8350
Radeon Hd 5750 1 gb
8 gb ram

There are several things you can try to avoid crashes.

1. Install the game with administrator rights and not in the default "\Program Files" folder, but in a custom one (like C:\Games\).
If you haven't, uninstall the game, delete all files manually from Witcher 2 install folder and install it again with priviliges (right-click the setup file and choose "run as administrator")
In installation menu choose custom install options and create a folder with no diacritic signs in name, for example "TW2".

2. Make sure that DirectX9 is installed in addition to the default DirectX11 (http://www.microsoft.com/en-us/download/details.aspx?id=35)

3. Reinstall Visual C++ 2010 (and update via Windows Update)
(http://www.microsoft.com/en-us/download/details.aspx?id=5555)

4. Install .NET Framework version 4.0 (and update via Windows Update)
(http://www.microsoft.com/en-us/download/details.aspx?id=17851)

5. Turn off any antivirus software.

6. Make sure you have your My Documents folder in the default location

7. Graphics:
- Turn all settings to Application-Controlled in the graphic card drivers control panel
- Try changing the game's resolution to the same as your desktop one (lower your screen resolution if it's very high, e.g. 2560x1440)
- Run the game in lowest detail
- Run the game in windowed mode