Open source Intel drivers often support OpenGL 4.5+ even on older Windows-limited hardware (e.g., Broadwell gets OpenGL 4.5 on Linux vs 4.4 on Windows).
If you have an Ivy Bridge or older Intel chip, you are hardware-limited. You cannot “download” OpenGL 4.3. Here are your options: opengl 4.3 download intel
| Generation | Intel Processor Families | OpenGL Max | | :--- | :--- | :--- | | | Core i3/i5/i7/i9-11xxx | Up to 4.6 | | 10th Gen (Ice Lake) | Core i3/i5/i7-10xxx (G-series) | Up to 4.6 | | 9th Gen (Coffee Lake R) | Core i3/i5/i7-9xxx | Up to 4.6 | | 8th Gen (Coffee Lake, Kaby Lake R) | Core i3/i5/i7-8xxx | Up to 4.6 | | 7th Gen (Kaby Lake) | Core i3/i5/i7-7xxx | Up to 4.6 | | 6th Gen (Skylake) | Core i3/i5/i7-6xxx | Up to 4.5 (some 4.6 with newer drivers) | | 5th Gen (Broadwell) | Core i5/i7-5xxx | Up to 4.4 | | 4th Gen (Haswell) | Core i3/i5/i7-4xxx | Up to 4.3 (End of the line) | Open source Intel drivers often support OpenGL 4