Windows 7 Download Windows XP can not cure the abn

There are some glitches friend's computer, so I went to his house to help him repair it. But he and I are the operating system Windows XP, this system has the function of the remote login, why not help a friend repair a remote login to computer? First,Office Home And Business, I run inside the input of the remote computer IP address 192.xxx.xxx.xx access his shared directory, I am prompted to enter a user name and password to verify identity,Office 2010 Standard, but the authentication dialog box the user name box is greyed out.
strange, how is it gray?

how is this going? Estimated previously installed a network firewall, turn off the local account of the sharing settings, you need to re-open the can. start first policy group,Windows 7 Starter, and then Computer Configuration-Windows Settings - Security Settings - Local Policies - Security Options - Network Access, choose users authenticate as Guest But this lack of change a little, it is the other side to know your user name and password. If the other party has its own Administrator account,Windows 7 Download, then you can have all of their authority to operate the computer, it is necessary to use another method Caixing.

local user authentication

in their own right here, users authenticate as Guest. First in the Control Panel's

password can not be empty!
strategy group and then select Computer Configuration-Windows Settings - Security Settings - Local Policies - User Rights Assignment - Deny access to this machine from the network, in the inside to see if there GUEST, If Some can be removed if the GUEST.

remove the GUEST account

if not previously set a password to the GUEST account, then it should be in the Computer Configuration-Windows Settings - Security Settings - Local Policies - Security Options - Accounts,Microsoft Office 2007 Pro Plus, select

select Disabled