SAM policy limits:

Failed logins before lockout is: 3
Minimum password length : 0
Password history count : 0<>========<> chntpw Main Interactive Menu <>========<>

Loaded hives:

1 - Edit user data and passwords
2 - Syskey status & change
3 - RecoveryConsole settings

• - -

9 - Registry editor, now with full write support!
q - Quit (you will be asked if there is something to save)

What to do? [1] -> 1　　　　　 <---"１"を入力

===== chntpw Edit User Info & Passwords ====

RID: 01f4, Username: , *disabled or locked*
RID: 01f5, Username: , *disabled or locked*
RID: 03ed, Username: , *disabled or locked*
RID: 03eb, Username: , *disabled or locked*
RID: 03ea, Username: , *disabled or locked*

Select: ! - quit, . - list users, 0x - User with RID (hex)
or simply enter the username to change: [Administrator] 　　　<---Administratorの変更なので"Enter"を入力
RID : 0500 [01f4]
Username: Administrator
fullname:
comment : ???????
homedir :

Account bits: 0x0211 =
[X] Disabled | [ ] Homedir req. | [ ] Passwd not req. |
[ ] Temp. duplicate | [X] Normal account | [ ] NMS account |
[ ] Domain trust ac | [ ] Wks trust act. | [ ] Srv trust act |
[X] Pwd don't expir | [ ] Auto lockout | [ ] (unknown 0x08) |
[ ] (unknown 0x10) | [ ] (unknown 0x20) | [ ] (unknown 0x40) |

Failed login count: 3, while max tries is: 3
Total login count: 4
Account is disabled
Do you wish me to reset the failed count, unset disabled and lockout,
and set the "password never expires" option? (y/n) [n]y　　　<---Administratorのアカウントロックされている場合これを表示
Unlocked!