For games on PC, it's very quick and simple to create a DxDiag.txt file.  These are extremely helpful to our support representatives in diagnosing potential root causes for common PC problems, such as launch crashes, incompatibilities, and graphical/sound defects.  Here's how you do it:

  1. From anywhere in Windows, press and hold the Windows key (on the bottom-right of your keyboard, between Ctrl and Alt) and simultaneously press R
  2. The Run dialog will appear
  3. Type "dxdiag" and press Enter
  4. The DirectX Diagnostic Tool will appear, showing all of your system information
  5. Click on "Save All Information..." at the bottom of the window
  6. Optionally rename the file and then save it to a location of your choice