Step 1: Click on Start and than click on Control Panel.
Step 2: Click on Network and Security.
Step 3: Click on Network and Sharing Center.
Step 4: Click on Change Adapter Settings.
Step 5: Right click on the Wireless Network Connection you are using.
Step 6: Click on Status.
Step 7: Click on the Wireless Properties button.
Step 8: Click on the security tab.
Step 9: Finally all you have to do is check mark the Show Characters bo and that will display your security password.