The quickest way to check your license status is through the Microsoft Office ribbon: Navigate to the Insert tab on the ribbon.

| Step | Action | Result | |------|--------|--------| | 1 | Open PowerPoint > think-cell tab > License button | See status & expiration | | 2 | Run think-cell.exe from Program Files | Direct license info | | 3 | Check %APPDATA%\think-cell\license.lic | Confirm key presence | | 4 | Re-enter license key if invalid | Fresh activation | | 5 | Use command line (IT admins) | Scriptable verification | | 6 | Troubleshoot date, AV, or permissions | Resolve hidden issues |

Insert -> think-cell -> Tools -> About -> "Check for Update" Close Office, run setup_think-cell.exe

If your check reveals a missing or expired key, follow these steps to install or update it.

: think-cell automatically checks your license every time you start the application. If your license is valid and has more than 14 days remaining, no window will appear. If it expires in less than 14 days, a notification dialog will show the exact expiration date.

Think-cell installs as a COM Add-in. You can confirm its presence by checking if the necessary registry keys exist: HKEY_CURRENT_USER\Software\Classes\thinkcell.addin

If your organization uses group policies, the license may be managed at: HKEY_LOCAL_MACHINE\Software\Policies\think-cell HKEY_CURRENT_USER\Software\Policies\think-cell 3. File System & Configuration Check

On Windows, think-cell stores license information and settings in the system registry. This is useful for verifying remote or large-scale installations.

Click on the button (usually represented by a small arrow or gear icon). Select About . A dialogue box will appear displaying: License key: The currently active key. Expiration Date: The date your current license expires. Version: The installed think-cell version. Method 2: Via Windows Registry

Double-clicking this entry will reveal the exact 25-character alphanumeric product key currently active on the machine. Method 3: Check Mac License Status (macOS)