Registry Editor for Windows Xp

[sukishan]

Allowing Network Access with Blank Passwords (XP and Vista)
Added 2/10/07

Although you can log in locally without a password, by default, WindowsXP Pro does not allow network users to access the computer without a password. Typically you will receive an Unknown error 31 if this is the case.

To change this setting:

Run gpedit.msc
Go to Computer Configuration / Windows Settings / Security Settings / Local Policies / Security Options
Double click on Accounts: Limit local account use of blank passwords to console login only
Disable this option

[pradeep prem]

from this register editor wndows xp we easily do without the password
within the setting change this is useful information