When Minecraft fails to open its window and the log shows 'GLFW error 65542: WGL: The driver does not appear to support OpenGL,' the game asked the graphics driver for OpenGL and the driver said no. On any reasonably modern GPU that answer is wrong, and it means the driver is generic, corrupted, or the game is running on an adapter without proper support. The fix path is the graphics driver, with a couple of environment checks alongside.
options.txt or stale GLFW natives issue: if the error began after moving a game folder between PCs, let the launcher repair the installation so platform-correct native libraries are re-fetched.GLFW is the library Minecraft uses to create its window and OpenGL context. Error 65542 is GLFW reporting, faithfully, that the platform's graphics stack refused an accelerated context. The library is the messenger; shooting it (reinstalling the game repeatedly) changes nothing until the driver underneath gives a different answer. This is the same root fault as the 'pixel format not accelerated' message, wearing a more technical coat.
Reinstalling Minecraft did not help. Why not? Because the game was never the broken part. The driver answering GLFW lives outside the game folder. A clean GPU driver install is the fix that matches the cause.
Does this mean my GPU is too old? Only if the GPU predates OpenGL 3.3 support (roughly, hardware from before about 2010). Anything newer that shows 65542 has a driver problem, not a hardware verdict.