Can you use an old version of Peachtree on a Windows 10 machine? I think it is 2007, 2008 and 2009.
I don't think you can use the application in its native mode on Windows 10. Based on the information found, the 2010 version is compatible with the following versions of Windows: Windows Vista, Windows XP. As you can see, there is no Windows 10 support and the onl;y way to install and use it is through virtualization.