conf t
config-register 0x2102
crypto key zeroize
yes
no crypto pki certificate pool
yes
exit
!
delete /force vlan.dat
delete /force nvram:*.cer
delete /force nvram:pnp*
delete /force flash:pnp*
!Next two lines are only for HA systems
!delete /force stby-nvram:*.cer
!delete /force stby-nvram:*.pnp*
write erase
reload
no