QB Issue Resolution:
you are correct, you can not.
2015 was the first year for win10, 2019 is out now, you need to up grade
Resolution for Issue 'Can’t re-register Quickbooks 2007 on new Windows 10 computer why?' available: Yes (Solved).
Source: Intuit Community forum.
Can’t re-register Quickbooks 2007 on new Windows 10 computer why?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for 2019
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Error Recovery for 2019 [Canada]
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