Choose the drive or folder where files were lost (e.g., C: drive, Recycle Bin, external drive).

If you lose files, shut down the computer. Do not save new files to the affected drive.

Run the installer. If it is truly "preactivated," you will see "License: Unlimited" or "Pro Edition" in the top right corner without entering a key.

Click "Scan." The software will run a Quick Scan (few seconds) followed by an automatic Deep Scan (can take 30 minutes to several hours depending on drive size).