Computer running slow, fixing for friend

I have been given a Dell Inspiron B130 to repair for a family friend. I have a bit of knowledge but am not entirely sure about some things. I would like to be sure that I do this successfully as it is not my own computer. It is very bogged down and I'm not entirely sure where to start. Here is the HijackThis log:

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 7:30:59 PM, on 5/27/2013
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:\Program Files\Microsoft Security Client\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Juniper Networks\Common Files\dsNcService.exe
C:\WINDOWS\System32\WLTRAY.exe
C:\Program Files\Dell\QuickSet\quickset.exe
C:\Program Files\SigmaTel\C-Major Audio\WDM\stsystra.exe
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Documents and Settings\All Users\Application Data\Ad-Aware Browsing Protection\adawarebp.exe
C:\WINDOWS\System32\hkcmd.exe
C:\WINDOWS\System32\igfxpers.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\System32\WLTRYSVC.EXE
C:\Program Files\Microsoft Security Client\msseces.exe
C:\Program Files\Common Files\Java\Java Update\jusched.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\System32\bcmwltry.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Common Files\Java\Java Update\jucheck.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\judy\Local Settings\Temporary Internet Files\Content.IE5\PPI4LOKF\HijackThis[1].exe
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
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Internet Explorer, optimized for Bing and MSN
R3 - URLSearchHook: (no name) - {A3BC75A2-1F87-4686-AA43-5347D756017C} - (no file)
O2 - BHO: CrossriderApp0003491 - {11111111-1111-1111-1111-110011341191} - C:\Program Files\Vid-Saver\Vid-Saver.dll (file missing)
O2 - BHO: Ad-Aware Security Toolbar - {6c97a91e-4524-4019-86af-2aa2d567bf5c} - C:\Program Files\adawaretb\adawareDx.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: Blekko search bar - {7d9e1adc-7db1-4eaf-b6c7-7e062074e6be} - C:\Program Files\blekkotb_soc\blekkotb_019X.dll (file missing)
O2 - BHO: Search Toolbar - {9D425283-D487-4337-BAB6-AB8354A81457} - C:\Program Files\Search Toolbar\SearchToolbar.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: Search Toolbar - {9D425283-D487-4337-BAB6-AB8354A81457} - C:\Program Files\Search Toolbar\SearchToolbar.dll
O3 - Toolbar: (no name) - {CCC7A320-B3CA-4199-B1A6-9F516DD69829} - (no file)
O3 - Toolbar: Ad-Aware Security Toolbar - {6c97a91e-4524-4019-86af-2aa2d567bf5c} - C:\Program Files\adawaretb\adawareDx.dll
O3 - Toolbar: Blekko search bar - {7d9e1adc-7db1-4eaf-b6c7-7e062074e6be} - C:\Program Files\blekkotb_soc\blekkotb_019X.dll (file missing)
O4 - HKLM\..\Run: [Ad-Aware Browsing Protection] "C:\Documents and Settings\All Users\Application Data\Ad-Aware Browsing Protection\adawarebp.exe"
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - HKUS\S-1-5-18\..\Run: [DWQueuedReporting] "c:\PROGRA~1\COMMON~1\MICROS~1\DW\dwtrig20.exe" -t (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [adaware] reg.exe delete "HKCU\Software\AppDataLow\Software\adaware" /f (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [DWQueuedReporting] "c:\PROGRA~1\COMMON~1\MICROS~1\DW\dwtrig20.exe" -t (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [adaware] reg.exe delete "HKCU\Software\AppDataLow\Software\adaware" /f (User 'Default user')
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
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/micr...?1302612836390
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/ge...sh/swflash.cab
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab
O16 - DPF: {E6F480FC-BD44-4CBA-B74A-89AF7842937D} (SysInfo Class) - http://content.systemrequirementslab...ri_4.5.1.0.cab
O16 - DPF: {F27237D7-93C8-44C2-AC6E-D6057B9A918F} (JuniperSetupClientControl Class) - https://juniperive.net.utmck.edu/dan...etupClient.cab
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 Flash Player Update Service (AdobeFlashPlayerUpdateSvc) - Adobe Systems Incorporated - C:\WINDOWS\system32\Macromed\Flash\FlashPlayerUpdateService.exe
O23 - Service: Juniper Network Connect Service (dsNcService) - Juniper Networks - C:\Program Files\Juniper Networks\Common Files\dsNcService.exe
O23 - Service: Google Update Service (gupdate) (gupdate) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Google Update Service (gupdatem) (gupdatem) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: Steam Client Service - Valve Corporation - C:\Program Files\Common Files\Steam\SteamService.exe
O23 - Service: Dell Wireless WLAN Tray Service (wltrysvc) - Unknown owner - C:\WINDOWS\System32\WLTRYSVC.EXE
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End of file - 6681 bytes

Thank you so much in advance!