Administrator Logon not allowed

[Guest]

I added a password to the Administrator user and when I restart the Logon is
disabled, does not allow me to enter my new password, and a message is
displayed saying it cannot log me on.

 

[Gordon]

I added a password to the Administrator user and when I restart the Logon
is disabled, does not allow me to enter my new password, and a message is
displayed saying it cannot log me on.

Try booting into Safe Mode.

BTW, it is NOT good practice to use just the built-in Administrator account
for day-to-day use. If that account becomes corrupted, there is NO WAY you
can access your machine without doing a repair install of XP. Create
another user account (give it Admin rights if you want) and use that one
for day-to-day use. Leave the built-in administrator account for
emergencies.