Hi there.
I have had files slowly go missing or become corrupt. All my 2012 photos folder GONE! My 2011 photos are half gone. Each day more are going missing.
Other files are there but in an unrecognizable format eg: microsoft word file that I could previously open is now unreadable.
I have AVG Internet Security installed and it hasn't picked up any bugs.
I have got a Hijack this reading for you:
Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 3

17 PM, on 4/6/2012
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)
Boot mode: Normal
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\system32\spoolsv.exe
C:\Program Files\AVG\AVG8\IdentityProtection\agent\Bin\AVGIDSAgent.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Common Files\Java\Java Update\jusched.exe
C:\Program Files\AVG Secure Search\vprot.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Common Files\Ahead\Lib\NMBgMonitor.exe
C:\Program Files\Common Files\Ahead\Lib\NMIndexStoreSvr.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
C:\PROGRA~1\AVG\AVG8\avgfws8.exe
C:\PROGRA~1\AVG\AVG8\avgam.exe
C:\PROGRA~1\AVG\AVG8\avgrsx.exe
C:\Program Files\AVG\AVG8\IdentityProtection\agent\Bin\AVGIDSWatcher.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\Common Files\InterVideo\DeviceService\DevSvc.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Common Files\LightScribe\LSSrvc.exe
C:\Program Files\Nero\Update\NASvc.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Common Files\Ulead Systems\DVD\ULCDRSvr.exe
C:\Program Files\Common Files\AVG Secure Search\vToolbarUpdater\10.2.0\ToolbarUpdater.exe
C:\PROGRA~1\AVG\AVG8\avgemc.exe
C:\Program Files\AVG\AVG8\avgcsrvx.exe
C:\WINDOWS\System32\svchost.exe
C:\PROGRA~1\AVG\AVG8\avgnsx.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Mozilla Firefox\plugin-container.exe
C:\WINDOWS\system32\msiexec.exe
C:\Program Files\Trend Micro\HiJackThis\HiJackThis.exe
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
Yahoo!7
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
MSN.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL =
Bing
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page =
Bing
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page =
MSN.com
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
R3 - URLSearchHook: (no name) - {A3BC75A2-1F87-4686-AA43-5347D756017C} - (no file)
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG8\avgssie.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: IEExtension.VDownloaderBHO - {7b523e7c-f096-4e36-a0cb-7efeb5c675c1} - mscoree.dll (file missing)
O2 - BHO: AVG Security Toolbar - {95B7759C-8C7F-4BF1-B163-73684A933233} - C:\Program Files\AVG Secure Search\10.2.0.3\AVG Secure Search_toolbar.dll
O2 - BHO: Java(tm) Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: (no name) - {CCC7A320-B3CA-4199-B1A6-9F516DD69829} - (no file)
O3 - Toolbar: AVG Security Toolbar - {95B7759C-8C7F-4BF1-B163-73684A933233} - C:\Program Files\AVG Secure Search\10.2.0.3\AVG Secure Search_toolbar.dll
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\Program Files\Common Files\Ahead\Lib\NeroCheck.exe
O4 - HKLM\..\Run: [vProt] "C:\Program Files\AVG Secure Search\vprot.exe"
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [BgMonitor_{79662E04-7C6C-4d9f-84C7-88D8A56B10AA}] "C:\Program Files\Common Files\Ahead\Lib\NMBgMonitor.exe"
O4 - Startup: OneNote 2007 Screen Clipper and Launcher.lnk = C:\Program Files\Microsoft Office\Office12\ONENOTEM.EXE
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
O9 - Extra button: Send to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra 'Tools' menuitem: S&end to OneNote - {2670000A-7350-4f3c-8081-5663EE0C6C49} - C:\PROGRA~1\MICROS~2\Office12\ONBttnIE.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG8\avgpp.dll
O18 - Protocol: viprotocol - {B658800C-F66E-4EF3-AB85-6C0C227862A9} - C:\Program Files\Common Files\AVG Secure Search\ViProtocolInstaller\10.2.0\ViProtocol.dll
O20 - Winlogon Notify: avgrsstarter - avgrsstx.dll (file missing)
O22 - SharedTaskScheduler: Browseui preloader - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Adobe LM Service - Unknown owner - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe
O23 - Service: AVG8 E-mail Scanner (avg8emc) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgemc.exe
O23 - Service: AVG8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: AVG8 Firewall (avgfws8) - AVG Technologies CZ, s.r.o. - C:\PROGRA~1\AVG\AVG8\avgfws8.exe
O23 - Service: AVGIDSAgent - AVG - C:\Program Files\AVG\AVG8\IdentityProtection\agent\Bin\AVGIDSAgent.exe
O23 - Service: AVGIDSWatcher - AVG - C:\Program Files\AVG\AVG8\IdentityProtection\agent\Bin\AVGIDSWatcher.exe
O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Capture Device Service - InterVideo Inc. - C:\Program Files\Common Files\InterVideo\DeviceService\DevSvc.exe
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: LightScribeService Direct Disc Labeling Service (LightScribeService) - Hewlett-Packard Company - C:\Program Files\Common Files\LightScribe\LSSrvc.exe
O23 - Service: Nero Update (NAUpdate) - Nero AG - C:\Program Files\Nero\Update\NASvc.exe
O23 - Service: NBService - Nero AG - C:\Program Files\Nero\Nero 7\Nero BackItUp\NBService.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: Ulead Burning Helper (UleadBurningHelper) - Ulead Systems, Inc. - C:\Program Files\Common Files\Ulead Systems\DVD\ULCDRSvr.exe
O23 - Service: vToolbarUpdater10.2.0 - Unknown owner - C:\Program Files\Common Files\AVG Secure Search\vToolbarUpdater\10.2.0\ToolbarUpdater.exe
--
End of file - 8249 bytes
Please help me solve this.
Thanks