6. Register Duplicate File Cleaner
The screen below illustrates the status of an un-registered installation of Duplicate File Cleaner.

To register Duplicate File Cleaner, please do the following:
- Purchase Duplicate File Cleaner Here .
- Open Duplicate File Cleaner.
- Click the Register tab on top right.
- Enter Serial Number . Click "OK" to register. More info about register please see our FAQ.