I currently have a Cisco 3750 switch that has a Catalyst 4500 IOS loaded onto it. no idea how it got there but I am trying to upgrade it to a current IOS.The problem is I am unable to get into privileged mode to type any commands. I have tried doing the standard password wipe but still can not do anything. I also have attempted the xmodem transfer and also am not getting any results. If anyone has any idea on how I can erase this IOS it would be much appreciated.