Minecraft Pixel Format Not Accelerated Error

What does Pixel Format Not Accelerated mean?

Minecraft uses OpenGL for rendering. This error means Java requested a hardware-accelerated OpenGL context but the graphics driver returned a software (non-accelerated) pixel format or refused the request entirely. The result is a crash at launch before the game window opens.

Intel integrated graphics

This error is especially common on systems using Intel HD or UHD integrated graphics. Older Intel drivers have poor OpenGL support. Updating to the latest Intel graphics driver from Intel's official download center (not Windows Update) usually resolves it.

Java version mismatch

Using an older or incorrect Java version can cause this error. Minecraft 1.17+ requires Java 17. If you are using Java 8 or Java 11 with a newer Minecraft version, update to Java 17 from Adoptium or Azul.

How to fix step by step

1. 1Update your GPU driver: for Intel, download from intel.com/content/www/us/en/download-center; for NVIDIA, from nvidia.com; for AMD, from amd.com.
2. 2Update Java to version 17 (required for Minecraft 1.17+): download from adoptium.net.
3. 3In the Minecraft Launcher, ensure the installation uses the bundled Java (the launcher includes its own Java runtime).
4. 4Set your system to use the dedicated GPU (if present) for Java/Minecraft in GPU driver settings.
5. 5Disable integrated graphics in Device Manager if you have a dedicated GPU (as a diagnostic step).
6. 6Reinstall Minecraft launcher to restore the bundled Java runtime.

How PIXEL-FORMAT-NOT-ACCELERATED differs from related codes

• Error IO-NETTY: Minecraft lost connection with an io.netty network exception — often timeout or forced disconnect. (server or client)
• Error OUT-OF-MEMORY: Minecraft's Java process ran out of allocated memory (heap space). The game crashed because it could not allocate more RAM. (user-side)