1. Before installing TechSmith Camtasia 2025, you need to disable your antivirus. Click the Start menu, and then open Windows Security.

2. Find and click Manage settings.

3. Disable Real-time protection and the other protection features.

4. Disable your internet connection.

5. Extract the archive. The password is 123.

6. Open the extracted folder and double-click camtasia.exe.

7. Click OK to use English language.

8. Check all the boxes and click Options.

9. Uncheck Start Camtasia 2025 after installation, and then click Continue.

10. Hit the Install button to start the installation. If UAC (User Account Control) pops up, click Yes.

11. Click Finish after the installation progress ends.

12. Return to the folder where the Camtasia installer is located, and then open the folder as shown in the image below.

13. Copy TSCLicensing.dll.

14. Go to this folder and paste the .dll file to replace the existing one: C:\Program Files\TechSmith\Camtasia 2025\

15. Go back to the previous folder and copy RegInfo.ini.

16. Go to this folder and paste the .ini file to replace the existing one: C:\ProgramData\TechSmith\Camtasia Studio 25\

17. TechSmith Camtasia 2025 is now activated, but make sure to block it from accessing the internet.