From the log....
Code:
2013-06-25 11:37:28, Error CSI 00000027 (F) 80092004 [Warning,Facility=FACILITY_NTSSPI,Code=8196 (0x2004)] #473128# from CCSDirectTransaction::PrepareForCommit(...)[gle=0x90092004]
2013-06-25 11:37:28, Error CSI 00000028 (F) 80092004 [Warning,Facility=FACILITY_NTSSPI,Code=8196 (0x2004)] #473127# from CCSDirectTransaction::ExamineTransaction(...)[gle=0x90092004]
2013-06-25 11:37:28, Error CSI 00000029 (F) 80092004 [Warning,Facility=FACILITY_NTSSPI,Code=8196 (0x2004)] #473126# from CCSDirectTransaction_IRtlTransaction::ExamineTransaction(...)[gle=0x90092004]
2013-06-25 11:37:28, Error CSI 0000002a (F) CRYPT_E_NOT_FOUND #472878# from Windows::COM::CPendingTransaction::IStorePendingTransaction_Analyze(...)[gle=0x80092004]
2013-06-25 11:37:28, Error CSI 0000002b (F) CRYPT_E_NOT_FOUND #472355# from Windows::ServicingAPI::CCSITransaction::ICSITransaction_Commit(Flags = 38 (0x00000026), pSink = NULL, disp = 0, coldpatching = FALSE)[gle=0x80092004]
2013-06-25 11:37:28, Error CSI 0000002c (F) CRYPT_E_NOT_FOUND #472354# 4388647 us from Windows::ServicingAPI::CCSITransaction_ICSITransaction::Commit(flags = 0x00000026, pSink = NULL, disp = 0)
I'm not sure exactly what this means - perhaps looking at the windowsupdate.log file would help - please attach it to your reply