Goto Start -> Run

# Type:
control userpasswords2

Click OK
Select the "Advanced" tab in the "User Accounts" window
Click the "Advanced" button below the "Advanced user management" header
Select "Users" below "Local Users and Groups"
In the right pane, right-click "enigma-client"
Select Properties
Select the General tab
Uncheck everything
Then check "Password never expires"
Click Apply and OK (all the way out)