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Windows 7: How do I diagnose this performance problem?

10 Feb 2013   #1

Windows 7 Home Premium 64 bit
How do I diagnose this performance problem?

My wife has a Dell Inspiron 1570 (2GB RAM), relatively empty HDD, onboard graphics.

For a significant time she has been hitting 100% CPU making her machine unusable. Neither the task manager or Resource Monitor show what is eating the CPU time.

She contacted Dell whilst under warranty, they 'scanned' the system and claimed not be able to find any problems. All drivers are up to date. The system is running only Microsoft Security Essentials for anti-virus. I have used Revo-Uninstaller to minimise the amount of software on the machine. I have used CCleaner to clear out the rubbish.

Whilst researching the problem I came across a similar problem someone had reported and it was cured by unplugging the machine from the mains. I tried that and it worked! After unplugging the power supply, the CPU usage gradually drops to normal levels. I bought a new power supply but this has not cured the problem.

What usually causes the CPU to hit 100% is streaming video or downloading large files. That said, there could be other causes that we haven't hit on yet.

I have downloaded sysinternal's process explorer and tried looking to see if I could figure something out with that but I do not have the required knowledge to use it I think.

Could anybody help me how to cure this or, at least, figure out the cause? I would be incredibly grateful.

thanks, dan

My System SpecsSystem Spec

10 Feb 2013   #2
Microsoft MVP

Windows 7 Ultimate 32bit SP1

She may have picked up some malware.

Download DDS from one of these links:
  • Disable any script blocking protection
  • Double click the dds icon to run the tool.
  • When done, DDS will open two (2) logs:
    1. DDS.txt
    2. Attach.txt <--- will be minimized in the task tray
  • Save both reports to your desktop.
Include the contents of both logs in your next post.
My System SpecsSystem Spec
10 Feb 2013   #3

Windows 7 Home Premium 64 bit

Stupid question, but this is secure is it? I'm not giving you any passwords but you are getting a lot system info.

thanks, dan
My System SpecsSystem Spec

10 Feb 2013   #4

Windows 7 Home Premium 64 bit

DDS (Ver_2012-11-20.01) - NTFS_AMD64
Internet Explorer: 9.0.8112.16457 BrowserJavaVersion: 10.11.2
Run by Abi at 20:31:59 on 2013-02-10
Microsoft Windows 7 Home Premium 6.1.7601.1.1252.44.1033.18.3959.2978 [GMT 0:00]
AV: Microsoft Security Essentials *Enabled/Updated* {9765EA51-0D3C-7DFB-6091-10E4E1F341F6}
SP: Windows Defender *Disabled/Outdated* {D68DDC3A-831F-4fae-9E44-DA132C1ACF46}
SP: Microsoft Security Essentials *Enabled/Updated* {2C040BB5-2B06-7275-5A21-2B969A740B4B}
============== Running Processes ===============
C:\Windows\system32\svchost.exe -k DcomLaunch
C:\Windows\system32\svchost.exe -k RPCSS
C:\Program Files\Microsoft Security Client\MsMpEng.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
C:\Windows\system32\svchost.exe -k netsvcs
C:\Windows\system32\svchost.exe -k GPSvcGroup
C:\Windows\system32\svchost.exe -k LocalService
C:\Windows\system32\svchost.exe -k NetworkService
C:\Program Files\Dell\Dell Wireless WLAN Card\WLTRYSVC.EXE
C:\Program Files\Dell\Dell Wireless WLAN Card\bcmwltry.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\armsvc.exe
C:\Program Files\Realtek\Audio\HDA\AERTSr64.exe
C:\Windows\system32\svchost.exe -k imgsvc
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Realtek\Audio\HDA\RAVCpl64.exe
C:\Program Files\Dell\QuickSet\quickset.exe
C:\Program Files\Dell\Dell Wireless WLAN Card\WLTRAY.EXE
C:\Program Files\Microsoft Security Client\msseces.exe
C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe
C:\Program Files\Synaptics\SynTP\SynTPHelper.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
C:\Program Files\Windows Media Player\wmpnetwk.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
============== Pseudo HJT Report ===============
uStart Page = hxxp://
uSearch Bar = hxxp://
uSearch Page = hxxp://
uDefault_Page_URL = hxxp://
uDefault_Search_URL = hxxp://
uSearchAssistant = hxxp://
uSearchURL,(Default) = hxxp://
mWinlogon: Userinit = userinit.exe
BHO: Adobe PDF Link Helper: {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
BHO: Java(tm) Plug-In SSV Helper: {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files (x86)\Java\jre7\bin\ssv.dll
BHO: Skype Browser Helper: {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
BHO: Java(tm) Plug-In 2 SSV Helper: {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files (x86)\Java\jre7\bin\jp2ssv.dll
uRun: [Skype] "C:\Program Files (x86)\Skype\Phone\Skype.exe" /minimized /regrun
mRun: [Dell Webcam Central] "C:\Program Files (x86)\Dell Webcam\Dell Webcam Central\WebcamDell2.exe" /mode2
mRun: [DellSupportCenter] "C:\Program Files (x86)\Dell Support Center\bin\sprtcmd.exe" /P DellSupportCenter
mRun: [SunJavaUpdateSched] "C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe"
mRun: [Adobe ARM] "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe"
StartupFolder: C:\Users\Abi\AppData\Roaming\MICROS~1\Windows\STARTM~1\Programs\Startup\Dropbox.lnk - C:\Users\Abi\AppData\Roaming\Dropbox\bin\Dropbox.exe
mPolicies-Explorer: NoActiveDesktop = dword:1
mPolicies-Explorer: NoActiveDesktopChanges = dword:1
mPolicies-System: ConsentPromptBehaviorAdmin = dword:5
mPolicies-System: ConsentPromptBehaviorUser = dword:3
mPolicies-System: EnableUIADesktopToggle = dword:0
mPolicies-System: PromptOnSecureDesktop = dword:0
IE: Add to Google Photos Screensa&ver - C:\Windows\System32\GPhotos.scr/200
IE: E&xport to Microsoft Excel - C:\PROGRA~2\MICROS~1\Office12\EXCEL.EXE/3000
IE: {2670000A-7350-4f3c-8081-5663EE0C6C49} - {48E73304-E1D6-4330-914C-F5F514E3486C} - C:\Program Files (x86)\Microsoft Office\Office12\ONBttnIE.dll
IE: {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
IE: {92780B25-18CC-41C8-B9BE-3C9C571A8263} - {FF059E31-CC5A-4E2E-BF3B-96E929D65503}
DPF: {682C59F5-478C-4421-9070-AD170D143B77} - hxxp://
DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} - hxxp://
DPF: {CAFEEFAC-0016-0000-0035-ABCDEFFEDCBA} - hxxp://
TCP: NameServer =
TCP: Interfaces\{8BDEEED7-0A77-4B15-B792-F27686BD881B} : DHCPNameServer =
TCP: Interfaces\{8BDEEED7-0A77-4B15-B792-F27686BD881B}\2484F43545 : DHCPNameServer =
TCP: Interfaces\{8BDEEED7-0A77-4B15-B792-F27686BD881B}\24F696E676F60284F6473707F647 : DHCPNameServer =
TCP: Interfaces\{8BDEEED7-0A77-4B15-B792-F27686BD881B}\2516D6374656E6D20527563756E647164796F6E6 : DHCPNameServer =
TCP: Interfaces\{8BDEEED7-0A77-4B15-B792-F27686BD881B}\D4F435359575946494 : DHCPNameServer =
TCP: Interfaces\{8BDEEED7-0A77-4B15-B792-F27686BD881B}\E4164796F6E616C602452757374702055726C696360275966496 : DHCPNameServer =
TCP: Interfaces\{AC1B49B2-E2A2-4ACD-8D4C-E7769F44BD03} : NameServer =,
Handler: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files (x86)\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
Handler: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\Program Files (x86)\Common Files\Skype\Skype4COM.dll
SSODL: WebCheck - <orphaned>
mASetup: {8A69D345-D564-463c-AFF1-A69D9E530F96} - "C:\Program Files (x86)\Google\Chrome\Application\24.0.1312.57\Installer\chrmstp.exe" --configure-user-settings --verbose-logging --system-level --multi-install --chrome
x64-BHO: Java(tm) Plug-In SSV Helper: {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre7\bin\ssv.dll
x64-BHO: Java(tm) Plug-In 2 SSV Helper: {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre7\bin\jp2ssv.dll
x64-Run: [SynTPEnh] C:\Program Files (x86)\Synaptics\SynTP\SynTPEnh.exe
x64-Run: [RtHDVCpl] C:\Program Files\Realtek\Audio\HDA\RAVCpl64.exe
x64-Run: [QuickSet] C:\Program Files\Dell\QuickSet\QuickSet.exe
x64-Run: [Broadcom Wireless Manager UI] C:\Program Files\Dell\Dell Wireless WLAN Card\WLTRAY.exe
x64-Run: [MSC] "C:\Program Files\Microsoft Security Client\msseces.exe" -hide -runkey
x64-Run: [IgfxTray] C:\Windows\System32\igfxtray.exe
x64-Run: [HotKeysCmds] C:\Windows\System32\hkcmd.exe
x64-Run: [Persistence] C:\Windows\System32\igfxpers.exe
x64-DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} - hxxp://
x64-DPF: {CAFEEFAC-0016-0000-0016-ABCDEFFEDCBA} - hxxp://
x64-Handler: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - <orphaned>
x64-Handler: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - <orphaned>
x64-Notify: GoToAssist - C:\Program Files (x86)\Citrix\GoToAssist\615\G2AWinLogon_x64.dll
x64-Notify: igfxcui - igfxdev.dll
x64-SSODL: WebCheck - <orphaned>
================= FIREFOX ===================
FF - ProfilePath - C:\Users\Abi\AppData\Roaming\Mozilla\Firefox\Profiles\7d1d227n.default\
FF - plugin: C:\Program Files (x86)\Adobe\Reader 11.0\Reader\AIR\nppdf32.dll
FF - plugin: C:\Program Files (x86)\Foxit Software\Foxit Reader\plugins\npFoxitReaderPlugin.dll
FF - plugin: C:\Program Files (x86)\Google\Picasa3\npPicasa3.dll
FF - plugin: C:\Program Files (x86)\Google\Update\\npGoogleUpdate3.dll
FF - plugin: C:\Program Files (x86)\Java\jre7\bin\plugin2\npjp2.dll
FF - plugin: C:\Windows\SysWOW64\Macromed\Flash\NPSWF32_11_5_502_146.dll
============= SERVICES / DRIVERS ===============
R0 MpFilter;Microsoft Malware Protection Driver;C:\Windows\System32\drivers\MpFilter.sys [2010-10-24 203888]
R0 PxHlpa64;PxHlpa64;C:\Windows\System32\drivers\PxHlpa64.sys [2010-1-10 55280]
R2 AERTFilters;Andrea RT Filters Service;C:\Program Files\Realtek\Audio\HDA\AERTSr64.exe [2009-3-31 92160]
R3 CtClsFlt;Creative Camera Class Upper Filter Driver;C:\Windows\System32\drivers\CtClsFlt.sys [2010-1-10 172704]
R3 IntcHdmiAddService;Intel(R) High Definition Audio HDMI;C:\Windows\System32\drivers\IntcHdmi.sys [2009-7-9 139264]
R3 RTL8167;Realtek 8167 NT Driver;C:\Windows\System32\drivers\Rt64win7.sys [2011-6-10 539240]
S2 clr_optimization_v4.0.30319_32;Microsoft .NET Framework NGEN v4.0.30319_X86;C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe [2010-3-18 130384]
S2 clr_optimization_v4.0.30319_64;Microsoft .NET Framework NGEN v4.0.30319_X64;C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorsvw.exe [2010-3-18 138576]
S2 SkypeUpdate;Skype Updater;C:\Program Files (x86)\Skype\Updater\Updater.exe [2013-1-8 161536]
S3 NisDrv;Microsoft Network Inspection System;C:\Windows\System32\drivers\NisDrvWFP.sys [2010-10-24 98688]
S3 NisSrv;Microsoft Network Inspection;C:\Program Files\Microsoft Security Client\NisSrv.exe [2012-3-26 291696]
S3 RdpVideoMiniport;Remote Desktop Video Miniport Driver;C:\Windows\System32\drivers\rdpvideominiport.sys [2013-1-5 19456]
S3 RSUSBSTOR;RtsUStor.Sys Realtek USB Card Reader;C:\Windows\System32\drivers\RtsUStor.sys [2009-6-4 216064]
S3 TsUsbFlt;TsUsbFlt;C:\Windows\System32\drivers\TsUsbFlt.sys [2013-1-5 57856]
S3 WatAdminSvc;Windows Activation Technologies Service;C:\Windows\System32\Wat\WatAdminSvc.exe [2010-6-23 1255736]
=============== File Associations ===============
FileExt: .inf: inffile=C:\Windows\System32\NOTEPAD.EXE %1 [UserChoice]
=============== Created Last 30 ================
2013-02-10 17:13:11 9161176 ----a-w- C:\ProgramData\Microsoft\Microsoft Antimalware\Definition Updates\{856A08D3-0E6D-4758-9BA1-75A4F2C8D7EA}\mpengine.dll
2013-02-10 16:57:33 9161176 ----a-w- C:\ProgramData\Microsoft\Microsoft Antimalware\Definition Updates\Backup\mpengine.dll
2013-01-23 12:54:53 -------- d-----w- C:\Program Files (x86)\Mozilla Firefox.bak
2013-01-22 21:15:16 -------- d-----w- C:\Program Files (x86)\Mozilla Maintenance Service
2013-01-15 09:29:32 95648 ----a-w- C:\Windows\SysWow64\WindowsAccessBridge-32.dll
==================== Find3M ====================
2013-02-10 18:39:01 74096 ----a-w- C:\Windows\SysWow64\FlashPlayerCPLApp.cpl
2013-02-10 18:39:01 697712 ----a-w- C:\Windows\SysWow64\FlashPlayerApp.exe
2013-01-30 10:53:22 273840 ------w- C:\Windows\System32\MpSigStub.exe
2012-12-16 17:11:22 46080 ----a-w- C:\Windows\System32\atmlib.dll
2012-12-16 14:45:03 367616 ----a-w- C:\Windows\System32\atmfd.dll
2012-12-16 14:13:28 295424 ----a-w- C:\Windows\SysWow64\atmfd.dll
2012-12-16 14:13:20 34304 ----a-w- C:\Windows\SysWow64\atmlib.dll
2012-11-28 10:35:43 859072 ----a-w- C:\Windows\SysWow64\npdeployJava1.dll
2012-11-28 10:35:38 779704 ----a-w- C:\Windows\SysWow64\deployJava1.dll
2012-11-23 03:26:31 3149824 ----a-w- C:\Windows\System32\win32k.sys
2012-11-23 03:13:57 68608 ----a-w- C:\Windows\System32\taskhost.exe
2012-11-20 05:48:49 307200 ----a-w- C:\Windows\System32\ncrypt.dll
2012-11-20 04:51:09 220160 ----a-w- C:\Windows\SysWow64\ncrypt.dll
2012-11-14 06:11:44 2312704 ----a-w- C:\Windows\System32\jscript9.dll
2012-11-14 06:04:11 1392128 ----a-w- C:\Windows\System32\wininet.dll
2012-11-14 06:02:49 1494528 ----a-w- C:\Windows\System32\inetcpl.cpl
2012-11-14 05:57:46 599040 ----a-w- C:\Windows\System32\vbscript.dll
2012-11-14 05:57:35 173056 ----a-w- C:\Windows\System32\ieUnatt.exe
2012-11-14 05:52:40 2382848 ----a-w- C:\Windows\System32\mshtml.tlb
2012-11-14 02:09:22 1800704 ----a-w- C:\Windows\SysWow64\jscript9.dll
2012-11-14 01:58:15 1427968 ----a-w- C:\Windows\SysWow64\inetcpl.cpl
2012-11-14 01:57:37 1129472 ----a-w- C:\Windows\SysWow64\wininet.dll
2012-11-14 01:49:25 142848 ----a-w- C:\Windows\SysWow64\ieUnatt.exe
2012-11-14 01:48:27 420864 ----a-w- C:\Windows\SysWow64\vbscript.dll
2012-11-14 01:44:42 2382848 ----a-w- C:\Windows\SysWow64\mshtml.tlb
============= FINISH: 20:33:54.13 ===============

Attached Files
File Type: zip (2.7 KB, 2 views)
My System SpecsSystem Spec
10 Feb 2013   #5
Microsoft MVP

Windows 7 Ultimate 32bit SP1

Please download (free version) Malwarebytes' Anti-Malware to your desktop
Malwarebytes : Malwarebytes Anti-Malware removes malware including viruses, spyware, worms and trojans, plus it protects your computer
* Double-click mbam-setup.exe and follow the prompts to install the program.Right click to run as Administrator, using Windows 7 or Vista.
* At the end, be sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
* If an update is found, it will download and install the latest version.
* Once the program has loaded, select Perform full scan, then click Scan.
* When the scan is complete, click OK, then Show Results to view the results.
* Be sure that everything is checked, and click Remove Selected.
* When completed, a log will open in Notepad. Please save it to a convenient location. Copy and Paste that log into your next reply.
My System SpecsSystem Spec
10 Feb 2013   #6
Microsoft MVP


If this is still the factory preinstall then that is a corrupt install to begin with all the bloatware and duplicate utilties that have better versions built into Win7, and which throttle it's native performance.

That's why most tech enthusiasts prefer to Clean Reinstall - Factory OEM Windows 7.
Everything you need is in the blue link to get and keep a perfect install.

Until then you can also Clean Up Factory Bloatware
My System SpecsSystem Spec
11 Feb 2013   #7

Windows 7 Home Premium 64 bit

Malwarebytes Anti-Malware (Trial)
Malwarebytes : Free anti-malware download

Database version: v2013.02.11.09

Windows 7 Service Pack 1 x64 NTFS
Internet Explorer 9.0.8112.16421
Abi :: ABI-PC [administrator]

Protection: Enabled

11/02/2013 20:36:49
mbam-log-2013-02-11 (20-36-49).txt

Scan type: Full scan (C:\|D:\|)
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 358358
Time elapsed: 1 hour(s), 53 minute(s), 42 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 0
(No malicious items detected)

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 0
(No malicious items detected)

Files Detected: 1
C:\Users\Abi\Downloads\Setup.exe (PUP.Bundle.Installer.OI) -> Quarantined and deleted successfully.

My System SpecsSystem Spec
11 Feb 2013   #8
Microsoft MVP


Nothing serious there. What happens after you establish a Clean boot as shown in Troubleshooting Steps for Windows 7?
My System SpecsSystem Spec
12 Feb 2013   #9

Windows 7 Home Premium 64 bit

Thanks gregrocker. I'll give a clean boot a go. I may not be able to do this for a while as my wife has the machine at work all day and I only have limited time in the evening.

Following your 'Clean Up Bloatware' guide I've disabled a lot of bits and pieces in startup and services. I'll keep an eye on these and see what happens.

Longer term I'll do a clean install of Win 7 but finding time to do that is not easy.

Thanks for your help and guidance, Dan
My System SpecsSystem Spec
13 Feb 2013   #10


Using task manager, click on the PERFORMANCE tab, then the menu/pulldown VIEW > SHOW KERNEL TIMES (select to checkmark it). That might shed light. Kernel times show in red.

As you allude to, process explorer (sysinternals > MS) can show you the CPU usage within a given process very nicely to some degree (still technical though).
My System SpecsSystem Spec

 How do I diagnose this performance problem?

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