Посмртрел сегодня в \WINDOWS\system32\wbem\Logs
( больше ничего - нет, 3 лога и всё их содержимое)
Код:

это при выключении вчера:
wbemprox.log
(Sun May 03 03:46:38 2009.20515687) : ConnectViaDCOM, CoCreateInstanceEx resulted in hr = 0x8007045b
(Sun May 03 03:46:38 2009.20515703) : ConnectViaDCOM, CoCreateInstanceEx resulted in hr = 0x8007045b
(Sun May 03 03:46:38 2009.20515703) : ConnectViaDCOM, CoCreateInstanceEx resulted in hr = 0x8007045b
wbemess.log
(Sun May 03 03:44:10 2009.20367781) : NT Event Log Consumer: could not retrieve sid, 0x80041002
(Sun May 03 11:37:31 2009.124609) : NT Event Log Consumer: could not retrieve sid, 0x80041002
(Sun May 03 11:37:31 2009.124687) : NT Event Log Consumer: could not retrieve sid, 0x80041002
(Sun May 03 11:37:31 2009.124687) : NT Event Log Consumer: could not retrieve sid, 0x80041002
(Sun May 03 11:37:31 2009.124687) : NT Event Log Consumer: could not retrieve sid, 0x80041002
(Sun May 03 11:37:31 2009.124687) : NT Event Log Consumer: could not retrieve sid, 0x80041002
(Sun May 03 11:37:31 2009.124687) : NT Event Log Consumer: could not retrieve sid, 0x80041002
(Sun May 03 11:37:31 2009.124687) : NT Event Log Consumer: could not retrieve sid, 0x80041002
(Sun May 03 11:37:31 2009.124687) : NT Event Log Consumer: could not retrieve sid, 0x80041002
(Sun May 03 11:37:31 2009.124687) : NT Event Log Consumer: could not retrieve sid, 0x80041002
(Sun May 03 11:37:31 2009.124687) : NT Event Log Consumer: could not retrieve sid, 0x80041002
Это при подключении к сети (провайдер интернета) - по времени
wmiprov.log
(Sun May 03 11:40:16 2009.290171) : WDM call returned error: 4200
(Sun May 03 11:45:32 2009.605875) : Impersonation failed - Access denied