password on computer in a network

[Aaron]

I have a home network set up and have what seems like
everything connected and each of the 3 machines can see
one another . BUT.. one machine has a password on it. I
cant find or remember ever setting a password for this
machine.
Any help out there

 

[ljr]

When you are connected to this Machine try opening the dos
prompt, ant at the prompt type in the following: net
password this will allow you to change your password

 

[Guest]

I have the same problem.
When I try to locate the network password on the machine that has the issue,
it shows no password. None of the other computers in the network can access
it.
The dos solution might work but I don't know how to get into dos on an XP
machine.
Any help would be much appreciated.