In Windows 7 machine that cannot detect XP machines:
- Right click computer and select Properties.
- On left pane select Advance System Settings.
- On System Properties windows that appeared select Computer Name Tab.
4.Change the Workgroup by clicking the Change.
- In Workgroup textbox type your desired Workgroup Name that will be commonly used by all of your Win7 and XP machines. (with no spaces)
- Click Ok and let the computer restart.
- Be sure that of your target computers use the same workgroup name exactly for them to be detectable vice versa.
By this your machines now are detectable. Usually only the Windows 7 machines are inaccessible from either XP or the same Windows 7 machines. XP machines are quite not a problem for access from Win7 machines.
1.The easiest cure to this is to put a password to the inaccessible win7 machine.
- Then after putting password restart the machine and try to access it again providing now the password and the user account where the password is binded.
- Upon the installation of Win7 OS, the default user name is: user , so you may also try the user as username and the password in case the username you provided is denied.
You will only be asked for password just once and you can then be able to access the machines until the next network session. if what you want is to permanently disable password policies then you may follow the previous posts of others above specially regarding
local security policies