Once you change computers, you'll be unable to reinstall or reactivate QuickBooks 2004, AllMortgages. That version is already unsupported.
The Desktop versions are supported for three years. You'll want to upgrade to the latest one. Then, you can convert your company files.
The reason for the upgrade is because Windows 10 or later is not one of the supported Operating Systems of QuickBooks 2004. This means that you'll be unable to get the best Desktop experience.
If there's anything else that I can do for you, please don't hesitate to get back to this thread.
