diff --git a/_pages/en_US/formatting-sd-(windows).txt b/_pages/en_US/formatting-sd-(windows).txt
index b3d5ad5456..9e3f31dba3 100644
--- a/_pages/en_US/formatting-sd-(windows).txt
+++ b/_pages/en_US/formatting-sd-(windows).txt
@@ -62,3 +62,6 @@ This page is for Windows users only. If you are not on Windows, check out the [F
 
 * Failed to open device: GetLastError()=32
   + Close everything that may be using the SD card, such as any File Explorer windows.
+
+* GetLastError()=1117
+  + Your SD card write-protection switch may be [enabled](/images/sdlock.png). The lock must be flipped upwards to allow writing to the SD card (including formatting).
\ No newline at end of file
diff --git a/images/sdlock.png b/images/sdlock.png
new file mode 100644
index 0000000000..a9ce7c4469
Binary files /dev/null and b/images/sdlock.png differ