I have just tried removing search.us.com from my computer both in chrome and firefox - using windows XP operating system
I have tried the following programes which all say they can remove it
Spyhunter
Hitman Pro
Malwarebytes
with no success

Has anyone a suggestion on how to get rid of it?
Thanks
bgrimwade

Post a hiJackThis log, google will easily find HJT.

Logfile of HijackThis v1.99.1
Scan saved at 1:33:30 AM, on 6/17/2013
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)

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\nvsvc32.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Microsoft Security Client\Antimalware\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\Acronis\TrueImageHome\TrueImageMonitor.exe
C:\Program Files\Common Files\Acronis\Schedule2\schedhlp.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\WINDOWS\system32\rundll32.exe
C:\Documents and Settings\All Users\Application Data\Ad-Aware Browsing Protection\adawarebp.exe
C:\Program Files\Google\Google Talk\googletalk.exe
C:\Program Files\Microsoft Security Client\msseces.exe
C:\Program Files\Common Files\Java\Java Update\jusched.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Logitech\SetPoint\SetPoint.exe
C:\Program Files\Ralink\Common\RaUI.exe
C:\Program Files\Windows Desktop Search\WindowsSearch.exe
C:\Program Files\OpenOffice.org 3\program\soffice.exe
C:\Program Files\OpenOffice.org 3\program\soffice.bin
C:\Program Files\Common Files\Logitech\KhalShared\KHALMNPR.EXE
C:\Program Files\Common Files\Acronis\Schedule2\schedul2.exe
C:\Program Files\Common Files\Acronis\CDP\afcdpsrv.exe
C:\WINDOWS\system32\crypserv.exe
C:\Program Files\DefaultTab\DefaultTabSearch.exe
C:\Documents and Settings\MCS\Application Data\DefaultTab\DefaultTab\DTUpdate.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Ralink\Common\RaRegistry.exe
C:\WINDOWS\system32\SearchIndexer.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcAppFlt.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcIp.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Free Download Manager\fdm.exe
C:\Documents and Settings\MCS\My Documents\Downloads\hijackthis_sfx.exe
C:\Program Files\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://google.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
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 = http://go.microsoft.com/fwlink/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: HelloWorldBHO - {7825CFB6-490A-436B-9F26-4A7B5CFC01A9} - (no file)
O2 - BHO: DefaultTabBHO - {7F6AFBF1-E065-4627-A2FD-810366367D01} - C:\Documents and Settings\MCS\Application Data\DefaultTab\DefaultTab\DefaultTabBHO.dll
O2 - BHO: Free Download Manager - {CC59E0F9-7E43-44FA-9FAA-8377850BF205} - C:\Program Files\Free Download Manager\iefdm2.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
O4 - HKLM..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM..\Run: [Alcmtr] ALCMTR.EXE
O4 - HKLM..\Run: [ClearTKHandle] C:\Program Files\TouchKit\ClearTKHandle.exe
O4 - HKLM..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM..\Run: [TrueImageMonitor.exe] C:\Program Files\Acronis\TrueImageHome\TrueImageMonitor.exe
O4 - HKLM..\Run: [Acronis Scheduler2 Service] "C:\Program Files\Common Files\Acronis\Schedule2\schedhlp.exe"
O4 - HKLM..\Run: [nwiz] C:\Program Files\NVIDIA Corporation\nView\nwiz.exe /installquiet
O4 - HKLM..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM..\Run: [Adobe ARM] "C:\Program Files\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM..\Run: [Ad-Aware Browsing Protection] "C:\Documents and Settings\All Users\Application Data\Ad-Aware Browsing Protection\adawarebp.exe"
O4 - HKLM..\Run: [googletalk] C:\Program Files\Google\Google Talk\googletalk.exe /autostart
O4 - HKLM..\Run: [MSC] "C:\Program Files\Microsoft Security Client\msseces.exe" -hide -runkey
O4 - HKLM..\Run: [SunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe"
O4 - HKLM..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKCU..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: OpenOffice.org 3.3.lnk = C:\Program Files\OpenOffice.org 3\program\quickstart.exe
O4 - Global Startup: Logitech SetPoint.lnk = C:\Program Files\Logitech\SetPoint\SetPoint.exe
O4 - Global Startup: Ralink Wireless Utility.lnk = C:\Program Files\Ralink\Common\RaUI.exe
O4 - Global Startup: Windows Search.lnk = C:\Program Files\Windows Desktop Search\WindowsSearch.exe
O8 - Extra context menu item: Download all with Free Download Manager - file://C:\Program Files\Free Download Manager\dlall.htm
O8 - Extra context menu item: Download selected with Free Download Manager - file://C:\Program Files\Free Download Manager\dlselected.htm
O8 - Extra context menu item: Download video with Free Download Manager - file://C:\Program Files\Free Download Manager\dlfvideo.htm
O8 - Extra context menu item: Download with Free Download Manager - file://C:\Program Files\Free Download Manager\dllink.htm
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search && Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1278983635484
O20 - Winlogon Notify: dimsntfy - %SystemRoot%\System32\dimsntfy.dll (file missing)
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Program Files\Common Files\Acronis\Schedule2\schedul2.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Acronis Nonstop Backup Service (afcdpsrv) - Acronis - C:\Program Files\Common Files\Acronis\CDP\afcdpsrv.exe
O23 - Service: Crypkey License - Kenonic Controls Ltd. - C:\WINDOWS\SYSTEM32\crypserv.exe
O23 - Service: DefaultTabSearch - Unknown owner - C:\Program Files\DefaultTab\DefaultTabSearch.exe
O23 - Service: DefaultTabUpdate - Unknown owner - C:\Documents and Settings\MCS\Application Data\DefaultTab\DefaultTab\DTUpdate.exe
O23 - Service: ForceWare Intelligent Application Manager (IAM) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcAppFlt.exe
O23 - Service: Google Update Service (gupdate) (gupdate) - Unknown owner - C:\Program Files\Google\Update\GoogleUpdate.exe" /svc (file missing)
O23 - Service: Google Update Service (gupdatem) (gupdatem) - Unknown owner - C:\Program Files\Google\Update\GoogleUpdate.exe" /medsvc (file missing)
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Unknown owner - C:\Program Files\Java\jre6\bin\jqs.exe" -service -config "C:\Program Files\Java\jre6\lib\deploy\jqs\jqs.conf (file missing)
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: ForceWare IP service (nSvcIp) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcIp.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Ralink Registry Writer (RalinkRegistryWriter) - Ralink Technology, Corp. - C:\Program Files\Ralink\Common\RaRegistry.exe
O23 - Service: RXAPI - Unknown owner - C:\Program Files\ooRexx\rxapi.exe (file missing)

There are a few nasties I can see in that log. http://www.bleepingcomputer.com/download/combofix/ download and run that. It will take complete control of your computer and may take a while to run. Do not interrupt it, even if it looks like nothing is happening for a while. Once it has completed post it's log.

I have attached the file FYI
The search.us.com seems to have disappeared
Many thanks for your assistance will wait until your examinf the file before closing
Thanks again

Just a quick follow up FYI

Search.us.com has gone from chrome but remains in Firefox
Tried deleting it from the home page but it just reappears

I am off to work now, I will post again later on.

Fixed Firefox it had aa reset button which deleted it when utilized
Awaity post - no rush

Can you post a fresh HJT log, I can have a look at it and see if there is anything left over.

Please see file below
Logfile of HijackThis v1.99.1
Scan saved at 3:33:32 AM, on 6/19/2013
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v8.00 (8.00.6001.18702)

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\nvsvc32.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Microsoft Security Client\Antimalware\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\HitmanPro\hmpsched.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\RTHDCPL.EXE
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\Acronis\TrueImageHome\TrueImageMonitor.exe
C:\Program Files\Common Files\Acronis\Schedule2\schedhlp.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Documents and Settings\All Users\Application Data\Ad-Aware Browsing Protection\adawarebp.exe
C:\WINDOWS\system32\rundll32.exe
C:\Program Files\Google\Google Talk\googletalk.exe
C:\Program Files\Microsoft Security Client\msseces.exe
C:\Program Files\Common Files\Java\Java Update\jusched.exe
C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Logitech\SetPoint\SetPoint.exe
C:\Program Files\Ralink\Common\RaUI.exe
C:\Program Files\Windows Desktop Search\WindowsSearch.exe
C:\Program Files\OpenOffice.org 3\program\soffice.exe
C:\Program Files\OpenOffice.org 3\program\soffice.bin
C:\Program Files\Common Files\Logitech\KhalShared\KHALMNPR.EXE
C:\Program Files\Common Files\Acronis\Schedule2\schedul2.exe
C:\Program Files\Common Files\Acronis\CDP\afcdpsrv.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\crypserv.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Ralink\Common\RaRegistry.exe
C:\WINDOWS\system32\SearchIndexer.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcAppFlt.exe
C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcIp.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\Program Files\TCPEye\TCPEye.exe
C:\Program Files\Google\Chrome\Application\chrome.exe
C:\WINDOWS\system32\SearchProtocolHost.exe
C:\Program Files\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://google.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
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 = http://go.microsoft.com/fwlink/?LinkId=69157
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: (no name) - {7825CFB6-490A-436B-9F26-4A7B5CFC01A9} - (no file)
O2 - BHO: (no name) - {7F6AFBF1-E065-4627-A2FD-810366367D01} - (no file)
O2 - BHO: Free Download Manager - {CC59E0F9-7E43-44FA-9FAA-8377850BF205} - C:\Program Files\Free Download Manager\iefdm2.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
O4 - HKLM..\Run: [RTHDCPL] RTHDCPL.EXE
O4 - HKLM..\Run: [ClearTKHandle] C:\Program Files\TouchKit\ClearTKHandle.exe
O4 - HKLM..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM..\Run: [TrueImageMonitor.exe] C:\Program Files\Acronis\TrueImageHome\TrueImageMonitor.exe
O4 - HKLM..\Run: [Acronis Scheduler2 Service] "C:\Program Files\Common Files\Acronis\Schedule2\schedhlp.exe"
O4 - HKLM..\Run: [nwiz] C:\Program Files\NVIDIA Corporation\nView\nwiz.exe /installquiet
O4 - HKLM..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM..\Run: [Adobe ARM] "C:\Program Files\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
O4 - HKLM..\Run: [Ad-Aware Browsing Protection] "C:\Documents and Settings\All Users\Application Data\Ad-Aware Browsing Protection\adawarebp.exe"
O4 - HKLM..\Run: [googletalk] C:\Program Files\Google\Google Talk\googletalk.exe /autostart
O4 - HKLM..\Run: [MSC] "C:\Program Files\Microsoft Security Client\msseces.exe" -hide -runkey
O4 - HKLM..\Run: [SunJavaUpdateSched] "C:\Program Files\Common Files\Java\Java Update\jusched.exe"
O4 - HKCU..\Run: [SpybotSD TeaTimer] C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: OpenOffice.org 3.3.lnk = C:\Program Files\OpenOffice.org 3\program\quickstart.exe
O4 - Global Startup: Logitech SetPoint.lnk = C:\Program Files\Logitech\SetPoint\SetPoint.exe
O4 - Global Startup: Ralink Wireless Utility.lnk = C:\Program Files\Ralink\Common\RaUI.exe
O4 - Global Startup: Windows Search.lnk = C:\Program Files\Windows Desktop Search\WindowsSearch.exe
O8 - Extra context menu item: Download all with Free Download Manager - file://C:\Program Files\Free Download Manager\dlall.htm
O8 - Extra context menu item: Download selected with Free Download Manager - file://C:\Program Files\Free Download Manager\dlselected.htm
O8 - Extra context menu item: Download video with Free Download Manager - file://C:\Program Files\Free Download Manager\dlfvideo.htm
O8 - Extra context menu item: Download with Free Download Manager - file://C:\Program Files\Free Download Manager\dllink.htm
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search && Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1278983635484
O20 - Winlogon Notify: dimsntfy - %SystemRoot%\System32\dimsntfy.dll (file missing)
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Acronis - C:\Program Files\Common Files\Acronis\Schedule2\schedul2.exe
O23 - Service: Adobe Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Acronis Nonstop Backup Service (afcdpsrv) - Acronis - C:\Program Files\Common Files\Acronis\CDP\afcdpsrv.exe
O23 - Service: Crypkey License - Kenonic Controls Ltd. - C:\WINDOWS\SYSTEM32\crypserv.exe
O23 - Service: ForceWare Intelligent Application Manager (IAM) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcAppFlt.exe
O23 - Service: Google Update Service (gupdate) (gupdate) - Unknown owner - C:\Program Files\Google\Update\GoogleUpdate.exe" /svc (file missing)
O23 - Service: Google Update Service (gupdatem) (gupdatem) - Unknown owner - C:\Program Files\Google\Update\GoogleUpdate.exe" /medsvc (file missing)
O23 - Service: HitmanPro Scheduler (HitmanProScheduler) - SurfRight B.V. - C:\Program Files\HitmanPro\hmpsched.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Unknown owner - C:\Program Files\Java\jre6\bin\jqs.exe" -service -config "C:\Program Files\Java\jre6\lib\deploy\jqs\jqs.conf (file missing)
O23 - Service: Mozilla Maintenance Service (MozillaMaintenance) - Mozilla Foundation - C:\Program Files\Mozilla Maintenance Service\maintenanceservice.exe
O23 - Service: ForceWare IP service (nSvcIp) - Unknown owner - C:\Program Files\NVIDIA Corporation\NetworkAccessManager\bin32\nSvcIp.exe
O23 - Service: NVIDIA Display Driver Service (nvsvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Ralink Registry Writer (RalinkRegistryWriter) - Ralink Technology, Corp. - C:\Program Files\Ralink\Common\RaRegistry.exe

O2 - BHO: (no name) - {7825CFB6-490A-436B-9F26-4A7B5CFC01A9} - (no file)
O2 - BHO: (no name) - {7F6AFBF1-E065-4627-A2FD-810366367D01} - (no file)
O20 - Winlogon Notify: dimsntfy - %SystemRoot%\System32\dimsntfy.dll (file missing)

The above entries need to be fixed by HJT by placing a tick in the box next to each then hit the fix checked button and you are all sorted.

How is the computer running now?

I have deleted the files you recommended (actually the missing files) andthe computer runs well.
Many thanks for your assistance - it is truly appreciated
Brian

No worries, I am happy to help! :)

Re the removal of this key, O20 - Winlogon Notify: dimsntfy - %SystemRoot%\System32\dimsntfy.dll (file missing)...
I consider the proper course to be to restore the file, a part of maintaining system security, and to NOT delete the launch key.
DIMSNTFY.DLL
The Digital Identity Management Service Notification Handler starts via Winlogon Notify and appears in Windows\System3. It's part of a team used to verify digital certificates.
More at http://support.microsoft.com/kb/907247
And again... http://ezinearticles.com/?Dimsntfy-DLL-Errors-Fix---How-To-Repair-The-Dimsntfy-DLL-Error-On-Your-PC&id=5494857
It is actually a protected file, and so must be missing from the cache also.