If you already have think-cell installed and want to check if your key is active, valid, or nearing expiration, follow these steps. 1. The "About" Dialog Method (Preferred)
When the window appears, pay attention to the exact message displayed. It tells you exactly what the problem is. If the window says , your key is still working but you should request a renewal from your license provider. If it says “not valid” or “expired after…” , you need to obtain a new key and enter it into the window.
The exact date when the current license key will expire.
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HKEY_CURRENT_USER\Software\Classes\Software\think-cell
is the gold-standard software for creating professional charts and slide layouts directly inside Microsoft PowerPoint. However, like any enterprise software, license management can sometimes be a headache. Whether you are an IT administrator rolling out 500 licenses or a single user trying to figure out why your software says "Unlicensed," knowing how to check a Think-Cell license key install is critical.
A pop-up window will appear displaying critical information:
Your key file ( .tcell ) likely wasn't executed. Double-click the .tcell file manually, or drag and drop it onto an open PowerPoint slide.
To verify, John contacted ThinkCell support, providing them with the license key and his installation details. A friendly support agent confirmed that the key was indeed valid and associated with his account.
In this folder, you should find a settings.xml file. This file contains the local configuration, though it may not show the key in plain text for security.
Verify that your user account has permissions to write to the %APPDATA%\think-cell folder. If the software cannot save the settings.xml file, it will lose the license key upon closing.
