A system report will give the engineers a detailed report of your computer.
On Mac: Go to the Apple menu in the top left of your screen and click About This Mac. A dialogue box pops up. Select System Report. Then click Cmd + S (or File > Save). Attach that file it creates to your ticket.
On Windows: Click the Windows icon. Then, click the Cog/Settings icon. In the search bar, type “msinfo32” and press enter. You should see the system report. Go to File > Save to save it and then attach that file to your ticket.