First Login to the SITS Registry.
Click on My Centre in the menu bar on the left side.
Then click on Centre Administration.
In the menu bar it says Number of Local Users click on the Number that is shown below.
Enter the user's profile by clicking the Edit tab.
Click on the Manage tab.
To diable a SITS local user, click on Disable User.
Note! If you wish to Enable the user click on the button Enable User.