diff --git a/Lesson_3_Basic_commands_On_windows_system.md b/Lesson_3_Basic_commands_On_windows_system.md
index 8b13789..851e825 100644
--- a/Lesson_3_Basic_commands_On_windows_system.md
+++ b/Lesson_3_Basic_commands_On_windows_system.md
@@ -1 +1,2 @@
 
+[Basic Commands on Windows System.pdf](https://github.com/DSCCUSAT/Cyber-Security-Bootcamp/files/7355096/Basic.Commands.on.Windows.System.pdf)