Unable to open all the Registry keys that needed to be modified.
Setup was unable to open all the keys it anticipated using in HKEY_LOCAL_MACHINE and HKEY_CURRENT_USER. This can happen either at initial installation of Windows 2000, or during maintenance use of Setup.
Click Retry to retry the operation. If you get the same message, click Exit Setup and begin the initial installation or maintenance Setup operation again. If the message still occurs, contact your technical support group.