Gt Designer License Not Found Official

If using a physical key:

Would you like the step-by-step for reinstalling the Sentinel USB driver specifically?

This post focuses on the GT Designer3 software (part of the Mitsubishi Electric MELSOFT GT Works3 suite) and the GT Title Designer in vMix, as these are the most common scenarios for this error. Troubleshooting: "GT Designer License Not Found" Error

If you’re working on a HMI project or setting up a professional broadcast, few things are as frustrating as a "License Not Found" pop-up. This error typically occurs in two main software ecosystems: Mitsubishi’s GT Designer3 or vMix’s GT Title Designer. 1. Mitsubishi GT Designer3 (MELSOFT)

This error often pops up when the software cannot verify your Product ID or when an add-on function (like enhanced drive control) requires a separate license.

Check Your Product ID: Ensure you have entered the 12-digit Product ID found on your license certificate during installation. If you are using an older installation media with a newer Product ID, the installer might fail to recognize it.

Run as Administrator: Mitsubishi software is sensitive to permissions. Ensure you are logged in with administrator privileges before launching the software.

Update Your Version: Many license errors are caused by version mismatches. Visit the Mitsubishi FA Global Website to download the latest updates or patches for GT Designer3.

Re-initialize Library Files: If the error occurs when opening a project, the internal library configuration might be corrupt. Navigate to %APPDATA%\Local\MITSUBISHI. Locate and backup the folder named GTD3_2000. gt designer license not found

Delete the original folder and restart the application to let it rebuild its files. 2. vMix GT Title Designer

For broadcasters using vMix, this error usually points to a corrupted local configuration folder.

Clear AppData Folders: Users have found success by clearing the "GT Title" configuration.

Go to C:\Users\\AppData\Local and C:\Users\\AppData\Roaming. Find the folder named GT Title or similar.

Delete or rename the folder and reboot your computer. The software should recreate clean files upon the next launch. 3. General "FlexNet" Network License Errors

If your software uses a network-based license (common in corporate environments), the "License Not Found" error is often a connection issue.

Verify Your Network Adapter: Network licenses are often tied to a specific MAC address. If you’ve switched from a wired connection to Wi-Fi (or vice-versa), the license manager might not find the expected "host".

Check the License Server: Ensure the license manager service (like FlexNet) is running on the server. Sometimes manually stopping and restarting the server service resolves the "No such feature exists" error. GT Title Will not open - vMix Forums

There can be an instance where the configuration file of the application which is giving you the error is corrupted. In this case, vMix Forums Help For GT Document Update Tool - Mitsubishi Electric If using a physical key: | Message you

If you are seeing a "GT Designer License Not Found" error, it usually means the Mitsubishi Electric software cannot verify your product ID or communicate with the license management service. This is a common hurdle when setting up or moving the software to a new PC. Common Causes

Missing Product ID: The software was installed without a valid serial number or as a trial that has since expired.

Service Not Running: The "Mitsubishi Electric License Management" service isn't active in your system background.

Corrupted Installation: A recent Windows update or registry change has broken the link between the software and the license file.

Virtual Machines: If you are running GT Designer on a VM (like VMware or Parallels), the software sometimes fails to "see" the hardware-bound license. Troubleshooting Steps Check the License Service: Press Win + R, type services.msc, and hit Enter. Look for Mitsubishi Electric License Management Service.

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

Right-click the GT Designer 3 shortcut and select Run as Administrator. Sometimes the software lacks the permissions to read the license registry keys. Re-enter the Product ID: Go to your Control Panel > Programs and Features. Find GT Works3 / GT Designer 3.

Select Change/Uninstall. Some versions allow you to "Repair" or "Re-enter Product ID" without a full reinstall. Check for Conflict with "MELSOFT Selection":

If you have multiple MELSOFT products (like GX Works), ensure they aren't using a conflicting license manager version. Installing the latest MELSOFT Navigator often updates the license manager for all tools. When to Contact Support Would you like the step-by-step for reinstalling the

If you have a legitimate serial number and the steps above don't work, your license might be "locked" to a previous hardware ID. You will need to contact your local Mitsubishi Electric automation distributor to have the license deactivated or reset for your new machine.

Are you trying to move your license from an old computer to a new one, or did this error just appear out of nowhere on your current machine?

Here are a few options for a social media or forum post, depending on your specific goal (e.g., asking for help vs. sharing a solution).

Follow this sequence from quickest fix to advanced recovery.

Mitsubishi software is historically sensitive to newer OS's.

User Account Control (UAC): Set UAC to the lowest setting (Never notify) during installation and activation.

Error Message:
GT Designer License Not Found

Affected Software:

Common Causes:

If you have tried all the above and still see "License Not Found," you may have a hardware failure or a corrupted activation server record. Gather the following before calling your distributor or Mitsubishi support:

Pro tip: Mitsubishi licenses have a "recovery" feature. If you’ve lost your license due to a hard drive crash, you can request a License Recovery Certificate from your regional Mitsubishi office. They will issue a new key if you prove the old PC is decommissioned.