I have v1.1 of the OpenGL driver installed on my Windows 7 machine. (I knew it from here)
Now, I want to update it to v2.0.
I also figured that my Intel graphics card driver is old. So, will updating the Intel driver also update OpenGL?
Here is the procedure:
Verify your OpenGL version with this program: OpenGL Extension Viewer
Go to OpenGL getting started page -- select your graphics card vender, and go to their website to download the latest driver.
In Intel's case:
Automatically get your driver version checked from here (Java required)
If your driver is older, it will automatically provide you the link to the newer version.
Download and install it.