Gt Designer License Not Found 'link'

The "GT Designer License Not Found" error typically occurs with Mitsubishi Electric's GT Works3

Proactive Prevention: How to Avoid This Error in the Future

To prevent losing production time again, consider these three strategies:

: If your font size is set to "Large" or custom scaling in Windows, some GT Designer dialog boxes gt designer license not found

Ensure the Status is Running. If not, right-click it and select Start. Run as Administrator:

Are you seeing this error during a fresh installation, or did it suddenly appear on a system that was previously working? The "GT Designer License Not Found" error typically

: In some legacy versions of Mitsubishi software (like GT Designer 5), setting your Windows "Regional Settings" to

  1. Plug in the USB dongle.
  2. Open Device Manager (Win + X > Device Manager).
  3. Expand Universal Serial Bus devices.
  4. Look for "MELSOFT Dongle" or an "Unknown Device" with a yellow triangle.
  5. Right-click it > Uninstall device.
  6. Unplug and re-plug the dongle. Windows will reinstall the driver.
  7. Critical: Do not use a USB hub. Plug directly into the PC.

While license errors are frustrating, they serve as a reminder of the importance of software asset management Plug in the USB dongle

If the software was working previously and suddenly stopped, corrupted cache or configuration folders are the most likely culprits. Navigate to Local AppData : Open Windows Explorer and go to C:\Users\\AppData\Local C:\Users\\AppData\Roaming Identify GT Folders