Anytime Cisco releases a new IOS p_w_picpath for its network switch (or router), it is recommended that you upgrade it.
This article explains 7 easy steps to upgrade IOS p_w_picpath on a cisco switch or router.
Since you’ll be upgrading the IOS p_w_picpath, make sure you have physical access to the switch and you are in front of it. Use a console cable to connect to the switch.
Please note that the steps given below will be similar to both switches and routers. However this examples shows how to upgrade ios p_w_picpath on a cisco catalyst switch.To view the complete article click the following link: