Windows läuft nur im Abgesicherten Modus

Mein Computer-System: AMD Athlon 5150 Radeon R3 1.6 GHz
            
Installiertes Betriebssystem: Windows 7

Hallo.
Mein Rechner läuft seit gestern nur noch im abgesicherten Modus.
er startet Windows, fährt normal hoch, der Desktop wird aufgebaut und alle Symbole angezeigt, aber dann reagiert er auf nichts mehr. Starten kann ich nur noch im Abgesicherten Modus, und da kann ich meinen Virenscanner nicht starten (Avira)
Ich schicke mal ´ne Logdatei mit:
Logfile of Trend Micro HijackThis v2.0.5
Scan saved at 18:17:56, on 02.06.2016
Platform: Windows 7 SP1 (WinNT 6.00.3505)
MSIE: Internet Explorer v11.0 (11.00.9600.18283)

FIREFOX: 44.0.2 (x86 de)
Boot mode: Safe mode with network support

Running processes:
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Mozilla Thunderbird\thunderbird.exe
C:\Program Files (x86)\Avira\Launcher\Avira.Systray.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Program Files (x86)\Skype\Phone\Skype.exe
C:\Program Files (x86)\AVG\Framework\Common\avguix.exe
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
C:\Users\Eric\AppData\Local\Temp\DMR\Downloads\152e221a8bef8d2d13c58f995563a1a1\7b4e384f5b096b9656fee276ba88bb81\HijackThis_2.0.5.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.dell.com
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/p/?LinkId=255141
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://de.search.yahoo.com/yhs/web?hspart=iry&hsimp=yhs-fullyhosted_003&type=wncy_ir_16_19&param1=1&param2=f%3D1%26b%3DIE%26cc%3Dde%26pa%3DWincy%26cd%3D2XzuyEtN2Y1L1QzuyEtDtCyCyB0EtByBtBzytAtA0AyD0EyCtN0D0Tzu0StCyDzyyCtN1L2XzutAtFtBtCtFtCtFyCtN1L1Czu1BtBtN1L1G1B1V1N2Y1L1Qzu2SyC0FyD0B0A0Fzz0BtGtAzztDzytGzzzzyDtAtGyE0CtA0CtGyCyD0A0AtB0A0FyCyC0AyDzy2QtN1M1F1B2Z1V1N2Y1L1Qzu2StByCzyyDzz0C0FyEtG0C0DtA0CtGyEyD0B0CtGzz0F0E0BtG0AzyyBzzyCtCyDtB0A0E0DtC2QtN0A0LzuyE%26cr%3D276657259%26a%3Dwncy_ir_16_19%26os_ver%3D6.1%26os%3DWindows%2B7%2BProfessional
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: Canon Easy-WebPrint EX BHO - {3785D0AD-BFFF-47F6-BF5B-A587C162FED9} - C:\Program Files (x86)\Canon\Easy-WebPrint EX\ewpexbho.dll
O2 - BHO: AMD SteadyVideo BHO - {6C680BAE-655C-4E3D-8FC4-E6A520C3D928} - C:\Program Files (x86)\amd\SteadyVideo\SteadyVideo.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O3 - Toolbar: Canon Easy-WebPrint EX - {759D9886-0C6F-4498-BAB6-4A5F47C6C72F} - C:\Program Files (x86)\Canon\Easy-WebPrint EX\ewpexhlp.dll
O4 - HKLM\..\Run: [Avira SystrayStartTrigger] C:\Program Files (x86)\Avira\Launcher\Avira.SystrayStartTrigger.exe
O4 - HKLM\..\Run: [WinBooter] C:\Users\Eric\AppData\Local\Temp\DMR\Downloads\152e221a8bef8d2d13c58f995563a1a1\f597646b549f4882768b046ddc00bae6\BootTimer.exe /run
O4 - HKLM\..\Run: [Dropbox] "C:\Program Files (x86)\Dropbox\Client\Dropbox.exe" /systemstartup
O4 - HKLM\..\Run: [CanonQuickMenu] C:\Program Files (x86)\Canon\Quick Menu\CNQMMAIN.EXE /logon
O4 - HKLM\..\Run: [avgnt] "C:\Program Files (x86)\Avira\AntiVir Desktop\avgnt.exe" /min
O4 - HKLM\..\Run: [AvgUi] "C:\Program Files (x86)\AVG\Framework\Common\avguirnx.exe" /lps=fmw
O4 - HKLM\..\Run: [AVG_UI] "C:\Program Files (x86)\AVG\Av\avuirunnerx.exe" C:\Program Files (x86)\AVG\Av\avgui.exe
O4 - HKLM\..\RunOnce: [{761cd2c4-5249-4346-8318-a499d06d2681}] "C:\ProgramData\Package Cache\{761cd2c4-5249-4346-8318-a499d06d2681}\Avira.OE.Setup.Bundle.exe" /burn.runonce
O4 - HKCU\..\Run: [Steam] "C:\Program Files (x86)\Steam\steam.exe" -silent
O4 - HKUS\S-1-5-19\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'LOKALER DIENST')
O4 - HKUS\S-1-5-19\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'LOKALER DIENST')
O4 - HKUS\S-1-5-20\..\Run: [Sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /autoRun (User 'NETZWERKDIENST')
O4 - HKUS\S-1-5-20\..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe (User 'NETZWERKDIENST')
O4 - Global Startup: Adobe Gamma.lnk = C:\Program Files (x86)\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O9 - Extra button: Skype Click to Call settings - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O11 - Options group: [ACCELERATED_GRAPHICS] Accelerated graphics
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O18 - Protocol: skypec2c - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
O18 - Filter: video/mp4 - {20C75730-7C25-476B-95DC-C65810F9E489} - C:\Program Files (x86)\amd\SteadyVideo\VideoMIMEFilter.dll
O18 - Filter: video/x-flv - {20C75730-7C25-476B-95DC-C65810F9E489} - C:\Program Files (x86)\amd\SteadyVideo\VideoMIMEFilter.dll
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files (x86)\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Adobe Acrobat Update Service (AdobeARMservice) - Adobe Systems Incorporated - C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: @%SystemRoot%\system32\Alg.exe,-112 (ALG) - Unknown owner - C:\Windows\System32\alg.exe (file missing)
O23 - Service: AMD External Events Utility - Unknown owner - C:\Windows\system32\atiesrxx.exe (file missing)
O23 - Service: Avira Email-Schutz (AntiVirMailService) - Avira Operations GmbH & Co. KG - C:\Program Files (x86)\Avira\AntiVir Desktop\avmailc7.exe
O23 - Service: Avira Planer (AntiVirSchedulerService) - Avira Operations GmbH & Co. KG - C:\Program Files (x86)\Avira\AntiVir Desktop\sched.exe
O23 - Service: Avira Echtzeit-Scanner (AntiVirService) - Avira Operations GmbH & Co. KG - C:\Program Files (x86)\Avira\AntiVir Desktop\avguard.exe
O23 - Service: Avira Browser-Schutz (AntiVirWebService) - Avira Operations GmbH & Co. KG - C:\Program Files (x86)\Avira\AntiVir Desktop\avwebg7.exe
O23 - Service: AvgAMPS - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\Av\avgamps.exe
O23 - Service: AVGIDSAgent - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\Av\avgidsagenta.exe
O23 - Service: AVG Service (avgsvc) - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\Framework\Common\avgsvca.exe
O23 - Service: AVG WatchDog (avgwd) - AVG Technologies CZ, s.r.o. - C:\Program Files (x86)\AVG\Av\avgwdsvca.exe
O23 - Service: Avira Service Host (Avira.ServiceHost) - Avira Operations GmbH & Co. KG - C:\Program Files (x86)\Avira\Launcher\Avira.ServiceHost.exe
O23 - Service: Dienst "Bonjour" (Bonjour Service) - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Dropbox-Update-Service (dbupdatem) (dbupdatem) - Dropbox, Inc. - C:\Program Files (x86)\Dropbox\Update\DropboxUpdate.exe
O23 - Service: Digital Wave Update Service (DigitalWave.Update.Service) - Digital Wave Ltd. - C:\Program Files (x86)\Common Files\DVDVideoSoft\lib\app_updater.exe
O23 - Service: @%SystemRoot%\system32\efssvc.dll,-100 (EFS) - Unknown owner - C:\Windows\System32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\fxsresm.dll,-118 (Fax) - Unknown owner - C:\Windows\system32\fxssvc.exe (file missing)
O23 - Service: Google Update-Dienst (gupdate) (gupdate) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: Google Update-Dienst (gupdatem) (gupdatem) - Google Inc. - C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
O23 - Service: @%SystemRoot%\system32\ieetwcollectorres.dll,-1000 (IEEtwCollectorService) - Unknown owner - C:\Windows\system32\IEEtwCollector.exe (file missing)
O23 - Service: iPod-Dienst (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: @keyiso.dll,-100 (KeyIso) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @comres.dll,-2797 (MSDTC) - Unknown owner - C:\Windows\System32\msdtc.exe (file missing)
O23 - Service: @%SystemRoot%\System32\netlogon.dll,-102 (Netlogon) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: NVIDIA Network Service (NvNetworkService) - NVIDIA Corporation - C:\Program Files (x86)\NVIDIA Corporation\NetService\NvNetworkService.exe
O23 - Service: NVIDIA Streamer Service (NvStreamSvc) - NVIDIA Corporation - C:\Program Files\NVIDIA Corporation\NvStreamSrv\nvstreamsvc.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - Unknown owner - C:\Windows\system32\nvvsvc.exe (file missing)
O23 - Service: @%systemroot%\system32\psbase.dll,-300 (ProtectedStorage) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%systemroot%\system32\Locator.exe,-2 (RpcLocator) - Unknown owner - C:\Windows\system32\locator.exe (file missing)
O23 - Service: @%SystemRoot%\system32\samsrv.dll,-1 (SamSs) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: Skype Updater (SkypeUpdate) - Skype Technologies - C:\Program Files (x86)\Skype\Updater\Updater.exe
O23 - Service: @%SystemRoot%\system32\snmptrap.exe,-3 (SNMPTRAP) - Unknown owner - C:\Windows\System32\snmptrap.exe (file missing)
O23 - Service: @%systemroot%\system32\spoolsv.exe,-1 (Spooler) - Unknown owner - C:\Windows\System32\spoolsv.exe (file missing)
O23 - Service: @%SystemRoot%\system32\sppsvc.exe,-101 (sppsvc) - Unknown owner - C:\Windows\system32\sppsvc.exe (file missing)
O23 - Service: Steam Client Service - Valve Corporation - C:\Program Files (x86)\Common Files\Steam\SteamService.exe
O23 - Service: @%SystemRoot%\system32\ui0detect.exe,-101 (UI0Detect) - Unknown owner - C:\Windows\system32\UI0Detect.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vaultsvc.dll,-1003 (VaultSvc) - Unknown owner - C:\Windows\system32\lsass.exe (file missing)
O23 - Service: @%SystemRoot%\system32\vds.exe,-100 (vds) - Unknown owner - C:\Windows\System32\vds.exe (file missing)
O23 - Service: @%systemroot%\system32\vssvc.exe,-102 (VSS) - Unknown owner - C:\Windows\system32\vssvc.exe (file missing)
O23 - Service: @%systemroot%\system32\wbengine.exe,-104 (wbengine) - Unknown owner - C:\Windows\system32\wbengine.exe (file missing)
O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing)
O23 - Service: @%PROGRAMFILES%\Windows Media Player\wmpnetwk.exe,-101 (WMPNetworkSvc) - Unknown owner - C:\Program Files (x86)\Windows Media Player\wmpnetwk.exe (file missing)

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End of file - 11698 bytes
 Ich hoffe, ihr könnt mir helfen.