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Sometimes the license key isn't the problem—the add-in itself might be disabled or improperly installed. Use these steps to verify the physical installation state. 1. Check COM Add-ins in PowerPoint (Windows)
Ensure you have permissions to write to the %APPDATA%\think-cell folder. Try creating a test text document in that folder; if you cannot, your IT department may need to grant you write access. how to check think cell license key install
The license information is typically stored in the com.microsoft.office property list, often prefixed with com.think-cell.settings.licensekey . 4. Troubleshooting a "Missing" License Sometimes the license key isn't the problem—the add-in
Alex successfully pastes the key using Option A. The error dialog disappears, and the Gantt charts on the slide instantly become editable again. The deadline is saved. Check COM Add-ins in PowerPoint (Windows) Ensure you
| Action | Command / Path | Result | | :--- | :--- | :--- | | | PowerPoint > Think-Cell > About | Shows "Licensed to" | | Registry Check | regedit > HKCU\Software\think-cell\License | Serial key present | | Command Line | think-cell license status | Valid / Expired | | Log File | %APPDATA%\think-cell\think-cell.log | Error details | | Floating Server | TC_LICENSE_SERVER env var | Network path visible |
If the file is missing, no license is installed. If the key looks garbled or incomplete, the installation failed. Do not edit this file manually unless instructed by support , as incorrect formatting will break the license.
Sometimes the installation might not proceed as expected, or the license check might fail. 1. Locating the License Key Log File
