diff --git a/.gitignore b/.gitignore
index f774b7e22a..4d2ce285a9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,8 @@ obj/
 _site/
 Tools/NuGet/
 .optemp/
-
+Thumbs.db
+.DS_Store
 
 .openpublishing.build.mdproj
 .openpublishing.buildcore.ps1
diff --git a/education/trial-in-a-box/images/Thumbs.db b/education/trial-in-a-box/images/Thumbs.db
deleted file mode 100644
index d36fc0c985..0000000000
Binary files a/education/trial-in-a-box/images/Thumbs.db and /dev/null differ