Download the latest version of the installer from the Nitro Downloads page.
If you are comfortable with the Windows Registry, you can force the classic menu. nitro pro menu bar missing
Many users confuse the missing menu bar with Full-Screen mode. If the entire Nitro window has no title bar, no tabs, and the document takes up the whole screen: Download the latest version of the installer from
Nitro Pro 14 introduced an "Auto-Hide" feature similar to Microsoft Office. If you accidentally clicked the small pin icon or chevron icon at the bottom right of the title bar, the ribbon collapses entirely. If the entire Nitro window has no title
| Symptom | Likely Fix | | :--- | :--- | | Entire menu bar is gone | Press or Ctrl+F8 | | Screen is fully grey/black | Disable Hardware Acceleration via Registry | | Only tab names show, no tools | Double-click a tab or press Ctrl+F1 | | Window is full-screen only | Press F11 | | Menu bar flashes then disappears | Run the Clean-Up Tool and reinstall |