| Symptom | What It Means | How to Fix | |---------|---------------|-------------| | | License missing, expired, or invalid | Reinstall the key via License Manager | | “Invalid Product Key” error | Typo or wrong key format | Copy-paste the key exactly from your purchase email | | No Think-Cell tab in PowerPoint | Add-in not registered or license not activated | Run repair from Think-Cell installer | | License disappears after reboot | Permission issue (common on corporate PCs) | Run Think-Cell installer as Administrator |
"C:\Program Files\think-cell\think-cell" license repair how to check think cell license key install
Open think-cell's user profile folder ( %APPDATA%\think-cell ) as described in point 2. Check if you have sufficient permissions.. think-cell KB0010: The think-cell license key window pops up | Symptom | What It Means | How
If you are an administrator attempting to verify deployment across multiple machines without opening PowerPoint, you can look up the installed key in the system files: On Windows : Check the registry key at HKEY_CURRENT_USER\Software\think-cell HKEY_LOCAL_MACHINE\Software\think-cell : Look for the property list domain at com.microsoft.office with the key prefixed as com.think-cell.settings.licensekey think-cell Understanding License Expiration Automatic Alerts how to check think cell license key install
You can continue to use the software up to and including the date of expiration.