This registry change fixed it for me!!
- regedit to "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WpnUserService"
- add a DWORD (32bit) "DelayedAutostart" and set it to 1
- add a DWORD (32bit) "AutoStartDelay" click on Decimal and set it for 60 (for 1 minute)
Many thanks for the fix. It solved the close down problem and gave me access to the start button as well. All is back to normal(whatever that is).
Thank you very much.