View source for Delete / Erase / Change Password for the Cisco 2000, 2500, 3000, 4000, AccessPro, 7000 (RP), AGS, IGS, and STS-10x

'''Step 1:''' Hit '''ctrl / break''' directly after powering up the router. 
     If the break sequence does not work, refer to [[Standard Break Key Sequence Combinations During Password Recovery]] 
     for other key combinations. 
'''Step 2:''' Type '''o''', press '''ENTER''', and record the current value of the configuration register (usually 0x2102 or 0x102).
<br/><br/>
'''Step 3:''' Type '''o/r 0x2142''',and press '''ENTER'''
<br/><br/>
'''Step 4:''' Type '''i''' , the router will reboot but ignores the saved configuration.
<br/><br/>
'''Step 5:''' Would you like to enter the initial configuration dialog? [yes/no]: answer '''''NO''''' 
<br/><br/>
'''Step 6:''' Type '''enable''' at  Router>
<br/><br/>
'''Step 7:'''Type '''configure memory or copy startup-config running-config'''.
<br/><br/>
'''Step 8:''' Type '''show running-config'''.
<br/><br/>
'''Step 9:''' Type '''configure terminal''' to change or remove the password from the router.
<br/><br/>
'''Step 10:''' Type '''enable secret <password>''' in order to change the enable secret password or type '''NO ENABLE SECRET''' to remove the secret from router(config)#> 
<br/><br/>
'''Step 11''': type: '''''NO ENABLE PASSWORD''''' to remove the password from router (config)#>
<br/><br/>
'''Step 12:''' Type the '''no shutdown''' command on every interface that you use.
<br/><br/>
'''Step 13:''' Type '''config-register <configuration_register_setting>.''' For example: hostname(config)#config-register 0x2102 .
<br/><br/>
'''Step 14:''' Hit '''Ctrl / z''' or '''end''' to leave the configuration mode.
<br/><br/>
'''Step 15:''' Type ''' write memory''' or '''copy running-config startup-config ''' to save the changes.
<br/><br/>
'''Step 16:''' Type '''Reload'''