Currently, some computers are experiencing issues with activation, and our purchasing system is unavailable due to unforeseen circumstances.
As a temporary measure, CASIO will provide a software patch on 14 January 2026 that will extend the cost-free period for scientific calculator software.
Applying this software patch will extend the validity of the software until 30 April 2026 at no cost.
Extending Your Cost-free Period
- 1Download the computer software for the desired scientific calculator here and then install the software.
- 2Download the software patch for extending the cost-free period for the software installed in step 1.
- 3Decompress and run the software patch downloaded in step 2.
* Customers using macOS
Right-click the file and then select [OPEN] to run the patch. - 4Check that the valid period has changed.
* Depending on your PC's security settings, the batch file may not be able to execute.
Downloading the Software/
Cost-free Period Extension Patch
Windows
Mac