Син екран с рестартиране на системата

Здравейте,
проблема е следния: от известно време РС-то се рестартира поне веднъж дневно със съответния син екран.
днес успях да запиша и съобщението
PAGE_FAULT_IN_NONPAGE_AREA
....
STOP: 0x00000050(0nE424D000,0x00000000,0x804F2B30q0x00001)

четох за подобни проблеми при други патиланци, чистих регистри, червей, троянци и т.н., но ... уви.
ето и
Logfile of HijackThis v1.99.1
Scan saved at 18:15:51, on 18.06.2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Java\j2re1.4.2_04\bin\jusched.exe
C:\WINDOWS\system32\LMSXXD.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\OpenOffice.org 2.0\program\soffice.exe
C:\Program Files\OpenOffice.org 2.0\program\soffice.BIN
C:\Program Files\a-squared Anti-Malware\a2service.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\Program Files\Common Files\EPSON\EBAPI\eEBSVC.exe
C:\WINDOWS\SYSTEM32\SPOOL\DRIVERS\W32X86\3\HPZipm12.exe
C:\WINDOWS\system32\tcpsvcs.exe
C:\WINDOWS\System32\snmp.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Documents and Settings\1\Desktop\hijackthis\This.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = about:blank
R3 - Default URLSearchHook is missing
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\j2re1.4.2_04\bin\jusched.exe"
O4 - HKLM\..\Run: [LMSXXD] LMSXXD.exe
O4 - HKLM\..\Run: [a-squared] "C:\Program Files\a-squared Anti-Malware\a2guard.exe"
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [updateMgr] "C:\Program Files\Adobe\Acrobat 7.0\Reader\AdobeUpdateManager.exe" AcRdB7_0_5 -reboot 1
O4 - Startup: OpenOffice.org 2.0.lnk = C:\Program Files\OpenOffice.org 2.0\program\quickstart.exe
O12 - Plugin for .pdf: C:\Program Files\Internet Explorer\PLUGINS\nppdf32.dll
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {193C772A-87BE-4B19-A7BB-445B226FE9A1} (ewidoOnlineScan Control) - http://download.ewido.net/ewidoOnlineScan.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/...b?1164451888681
O16 - DPF: {EF791A6B-FC12-4C68-99EF-FB9E207A39E6} (McFreeScan Class) - http://download.mcafee.com/molbin/iss-loc/...049/mcfscan.cab
O23 - Service: a-squared Anti-Malware Service (a2AntiMalware) - Emsi Software GmbH - C:\Program Files\a-squared Anti-Malware\a2service.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: EpsonBidirectionalService - Unknown owner - C:\Program Files\Common Files\EPSON\EBAPI\eEBSVC.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\SYSTEM32\SPOOL\DRIVERS\W32X86\3\HPZipm12.exe


Благодаря предварително !!!