Update: Regarding how to enable Windows Aero, the approaches posted to the Dorico Forum troubleshooting thread (at this moment) does not work with Windows 7 Home Basic (as the Windows troubleshooting wizard suggests the user to pay for an upgrade to a more advanced Windows 7 version). Here’s the solution of how to enable Windows Aero for Windows 7 Home Basic:
Firstly, enabling the Desktop Window Manager Session Manager: Press Windows+R to show the RUN window and type “Services.msc” to show the Windows NT Services Manger. Among the listed services you could see the “Desktop Window Manager Session Manager”. Double-click it and set its startup type to “Automatic”.
Secondly, check your video device and its driver installation. These shall support at least Direct 9.0c with at least 512MB VRAM. (If you have fear that Windows Aero may slows down your video performance, you need to consider discrete graphics in lieu of Intel Integrated Graphics.) Also, your current display mode should have sufficient color depth (32bit true color is suggested).
After finishing the previous two steps you are suggested to reboot your computer unless nothing was changed.
Thirdly, go to Control Panel → All Control Panel Items → Display. In this Window you should see “Change color scheme” through its left window pane. Click on it and it will show the “Window Color and Appearance” window, and you should choose “Windows 7 Standard” (should be the toppest one) in lieu of others among all color schemes listed in it. Then press OK.
Till now if everything’s okay then you should see that your Windows File Explorer window should have glass-like title bar. Though this mode has no animation, transparency and customizable color, it allows the screen rendering APIs necessary to Dorico (and Dorico 2) to be fully functional.