-----Original Message-----
You need to log in with an admin account, then use
the User Accounts applet in control panel to set a
password on each account.
Depending on how your machine is now set you
may also need to remove the checkbox for automatic
login on one of the accounts using the utility obtained
by entering into Run control userpasswords2
If you have Home and use this utility do not change
other aspects of account with this utility, just the check
for automatic login.
--
Roger Abell
Microsoft MVP (Windows Server System: Security)
MCSE (W2k3,W2k,Nt4) MCDBA
.