Allow me to direct you to the correct place where you can obtain the validation code needed to register your QuickBooks, Sj900.
Before we continue, please know that you can't register discontinued products for the first time. If a discontinued product has been registered in the past and is being reinstalled, you can re-register it. Please get in touch with us to get the validation code, or contact us on 0808 239 4522.
While you might be able to run QuickBooks Desktop 2015 on Windows 11, you may encounter unexpected issues or limitations.
Check out these articles for answers to common questions regarding the discontinuation process. You can also find a link to our online tool for downloading your data, along with our support contact information:
Keep me posted if you have other QuickBooks queries or need guidance navigating around the product. We'll get back to ensure to provide the assistance you need.