Cisco Router Password Recovery

Serial Line: COM5
Speed: 9600
Speed (baud):9600
Data bits: 8
Stop bits: 1
Parity: None
Flow Control: None

Power up the router.

Press Ctrl + Pause Break key combinations while it's booting up.
This will present a ROMmon mode.

rommon 2 > confreg 0x2142
rommon 2 > reset

After the router finishes loading, 

Router> sh ver | begin ^Configuration
Configuration register is 0x2142
Router> enable
Router> copy startup-config running-config
Router> config t
Router(config)# enable secret mysecretpassword
Router(config)# config-register 0x2102
Router(config)# exit
Router# copy running-config startup-config
Destination filename [startup-config]? (Press Enter)
Router# reload
Proceed with reload? [confirm] (Press Enter)

Once the router finishes booting up:

Router>sh ver | begin ^Configuration
Configuration register is 0x2102