Does Duxbury DBT run on Windows 10, or Windows 11?

DBT Win 12.7 sr3 runs on Windows 8, Windows 10, or Windows 11.

DBT 12.1 is not fully compatible with Windows 10 Creator edition.

Pre-DBT 12.1 is not fully compatible with Windows 10.

You might have an earlier version of DBT and be entitled to a free update. The best way to find out if you can update is to launch DBT, click on Help, then click on Check for Updates. This informs you if you are eligible for a free downloadable upgrade to a newer version of DBT than you have.