The "Draw" tool is the heart of Avogadro. You can click to add atoms, click and drag to form bonds, and rotate the structure in 3D space with your mouse. The software intelligently adjusts bond angles and lengths, making it feel more like sketching than programming.
: In Avogadro, go to Settings → GL Settings → Disable “Use VBO” . If still broken, update your graphics driver. On VMs, enable 3D acceleration. avogadro-1.2.0n-win64.exe
on how to use Avogadro for molecular building or setting up an ORCA/Gaussian calculation? Browse /avogadro/1.2.0 at SourceForge.net The "Draw" tool is the heart of Avogadro
On Windows 10/11, SmartScreen may flag the unsigned installer (older Avogadro builds predate widespread signing). Click “More info” → “Run anyway”. click and drag to form bonds