The registration window appears in Duplicate Cleaner Pro, when in unregistered (Trial) mode. Here you can enter a purchased license key to activate Duplicate Cleaner Pro, or you can use the trial for a limited period.
Enter license key
Enter the purchased license key here. If you have received it by email it is usually quicker to paste the key in (select the key in the email and CTRL-C to copy, CTRL-V or paste button to paste into the form).
If you have lost your license key you can recover it automatically from our website. Click on the 'Recover license key' button to open the site in your web browser, or go to this link: Recover license key
Note that Duplicate Cleaner version 4 licenses won't work in this version, and the license key format is different - a long string of letters and numbers. Use the license recovery tool linked above to check for an upgraded key or an upgrade voucher.
