copy/move, unzipping win7 ultimate

Hi guys. This problem started about 10days ago, before then everything fine for a year. Now copying/moving and unzipping both winrar and 7Zip files takes forever. Example 3.45gb estimated 51/2hours. Crazy!
Have cleaned up all drives and re-installed Win7. Still the same. ran sfc cbs log available. Hijack this log

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 13:47:43, on 26/01/2011
Platform: Windows 7 (WinNT 6.00.3504)
MSIE: Internet Explorer v8.00 (8.00.7600.16700)
Boot mode: Normal

Running processes:
C:\Windows\system32\taskhost.exe
C:\Windows\system32\Dwm.exe
C:\Windows\Explorer.EXE
C:\Windows\RTHDCPL.EXE
C:\Program Files\OO Software\Defrag\oodtray.exe
C:\Program Files\Microsoft Security Client\msseces.exe
C:\Program Files\Internet Download Manager\IDMan.exe
C:\Program Files\Internet Download Manager\IEMonitor.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Trend Micro\HiJackThis\HiJackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = iGoogle
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 = http://www.bigseekpro.com/cdcovers/{4689099C-FCCB-4339-8713-612996F64F47}
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll
O4 - HKLM\..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM\..\Run: [SkyTel] SkyTel.EXE
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [AlcWzrd] ALCWZRD.EXE
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM\..\Run: [MSSE] "C:\Program Files\Microsoft Security Essentials\msseces.exe" -hide -runkey
O4 - HKLM\..\Run: [OODefragTray] C:\Program Files\OO Software\Defrag\oodtray.exe
O4 - HKLM\..\Run: [MSC] "C:\Program Files\Microsoft Security Client\msseces.exe" -hide -runkey
O4 - HKLM\..\Run: [CmPCIaudio] RunDll32 CMICNFG3.cpl,CMICtrlWnd
O4 - HKCU\..\Run: [IDMan] C:\Program Files\Internet Download Manager\IDMan.exe /onboot
O8 - Extra context menu item: Append Link Target to Existing PDF - res://C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Append to Existing PDF - res://C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert Link Target to Adobe PDF - res://C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Download all links with IDM - C:\Program Files\Internet Download Manager\IEGetAll.htm
O8 - Extra context menu item: Download FLV video content with IDM - C:\Program Files\Internet Download Manager\IEGetVL.htm
O8 - Extra context menu item: Download with IDM - C:\Program Files\Internet Download Manager\IEExt.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MIF5BA~1\Office14\EXCEL.EXE/3000
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/ge...sh/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{8C7E8B46-5EBE-4E51-AFBE-FEEEBC2C6220}: NameServer = 80.58.61.250,80.58.61.254
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O18 - Filter hijack: text/xml - {807573E5-5146-11D5-A672-00B0D022E945} - C:\Program Files\Common Files\Microsoft Shared\OFFICE14\MSOXMLMF.DLL
O20 - AppInit_DLLs: ,
O20 - Winlogon Notify: !SASWinLogon - C:\Program Files\SUPERAntiSpyware\SASWINLO.dll
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: Google Update Service (gupdate) (gupdate) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: KMService - Unknown owner - C:\Windows\system32\srvany.exe
O23 - Service: Process Monitor (LVPrcSrv) - Logitech Inc. - C:\Program Files\Common Files\Logishrd\LVMVFM\LVPrcSrv.exe
O23 - Service: lxdu_device - - C:\Windows\system32\lxducoms.exe
O23 - Service: MBAMService - Malwarebytes Corporation - C:\Program Files\Malwarebytes' Anti-Malware\mbamservice.exe
O23 - Service: Nero MediaHome 4 Service (NeroMediaHomeService.4) - Nero AG - C:\Program Files\Nero\Nero MediaHome 4\NMMediaServerService.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\Windows\system32\nvvsvc.exe
O23 - Service: O&O Defrag Agent (OODefragAgent) - O&O Software GmbH - C:\Program Files\OO Software\Defrag\oodag.exe
O23 - Service: USB Safely Remove Assistant (USBSafelyRemoveService) - Unknown owner - C:\Program Files\USB Safely Remove\USBSRService.exe

--
End of file - 5173 bytes


Hope someone can help me resolve this problem as I´m tearing what little hair I´ve got out! Have spent 4 days on this job now! Just noticed with this new install windows restored from the task bar will not overlay! What a crock!

Many thanks in anticipation.

Try it in safe mode
Try it with MSE disabled (MSE is proving to be "troublesome")

Run a full antivirus scan if you haven't already

Tried safe mode no joy!
Bit the bullet and clean installed same problem with winrar and 7zip.

Any ideas?

Sorry to mess you guys around. Found some dodgy files, got rid of those then tried unzipping on my "C" drive. Works ok. Moving back off my external fairly fast but why when I try to work on my external is copying/moving and unzipping slower than it was originally? Any help to put this right?