In the search box, press Ctrl + F and type LicenseNumber. If the file does not open automatically, click OK after selecting Notepad from the list of programs. Go to the Open File tab and choose the QBRegistration.dat file from the list of files. This will launch the Tech Support window. When the Product Registration window appears, press the F3 key. Press the F2 key on your keyboard to launch QuickBooks Desktop. How to Locate the QuickBooks Licence Number in the Registry Where can I get the QuickBooks license number in the registry? Fortunately, there is a far faster way to locate the QuickBooks validation code in the registry and use it to reactivate the product. If you have misplaced your QuickBooks license key, your application will not function after reinstallation or updating. If you buy QuickBooks software installation discs, the license information is on the label on the packaging, and if you buy the software online, it is in the confirmation email. To confirm your freshly purchased QuickBooks Desktop software, you will need a license key or a validation code. We are confident that this post will be the most instructive article for the QuickBooks validation key. In this report, we will understand 'The Registry Location of the QuickBooks Validation Code'.