Granting Full Disk Access is required for Techtool Pro to perform critical functions, such as testing and repairing disks. Below is a video demonstration on how to grant Full Disk Access in the Techtool Pro application. Follow these steps to enable Full Disk Access for Techtool Pro:

1. Launch Techtool Pro.
2. When the Grant Full Disk Access dialog appears, click the Grant Full Disk Access… button.
3. A new window will open with step-by-step instructions on how to Grant Full Disk Access to Techtool Pro.
4. In Step 1, click the button labeled ‘Click here to open the Security & Privacy setting’.
5. This will automatically present the Full Disk Access section in the System Settings application.
6. Return to Techtool Pro and drag the “Hot Air Balloon” icon from the application window into the Full Disk Access list.
7. Drop the “Hot Air Balloon” icon into the list.
8. When prompted, enter your administrator password to authorize the change.
9. After entering your password, you may see a message stating that Techtool Pro will not have Full Disk Access until it is quit. When prompted, select Later. Quitting TechTool Pro is not necessary.
10. Close the System Settings application.

Full Disk Access is now enabled, allowing Techtool Pro to function as intended.