Then, just paste these four files into your MicroSD card's root directory -- the one we opened through "AutoPlay" a few steps ago. Always leave these files in the root directory (don't move them around and don't rename them!).
Updating your R4 is as simple as replacing these files with the new ones offered on the R4DS website.
Note: In this picture example, the root directory for the MicroSD card lies in the G:/ drive. Your computer may use a different drive for this.