I recently bought an i7-640M (3rd generation I think) for my laptop, it has Intel HD Grpahics (1st gen). So I tried to run programs that require openGL 3.3 or higher.
But after checking, I only have openGL 2.1 (according to openGL extensions Viewer).
But the question is : Are there any graphics drivers for my processor (official or not)?
You purchased a laptop with a 1st gen processor, which is 10 years old.
Your processor and its graphics are not supported on Windows 10. The best you can do is to continuing to use the Microsoft generic driver, which lacks features and performance.
Regarding OpenGL 3.3, the best you can achieve is 2.1
We do not deal in unofficial drivers.