Sky rockets on Windows IDLE CPU usage

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• The Windows 7 CPU usage does not correspond to processes

  I used this system with Win7 64 bit for years and the normal use of the processor is 3% (I keep a monitor app open all the time).  After a reboot, this morning, my use is stuck around 20%.  Nothing terrible and my performance is fine, but it worries me because it is not normal.  In addition, according to the focus of the mouse, 'busy' animation always goes, so it really seems that something is running.  What is really strange is that I can not reconcile the CPU usage by the process of use/idle.  When I bring up the Task Manager and look at the processes tab, the system idle process is consistently in the upper 90s and some processes show sometimes 1 or 2%.  This is all quite normal and I expect to see.  But the use of the CPU at the bottom of the window indicates 20% or more.  It makes no sense at all.  Idle process + the CPU usage must be about 100%.  I realize that it has rounded passes with the percentages of process, but inactive processes should be 100 - all processes and thus only one percent or so off, not 15% off service.

  Is it possible that a process is running, that is hidden from me?  It seems unlikely that even if that were the case, it should affect the % idle process.  I did go to the performance tab and click on the "Resource monitor" button to get more details, but who do not appear to reveal something new.  Processes use about 20%, service about 1 or 2%.  The list of the process here does not show the idle process, but looking at the process I see only 3-5% use if I add.  This page gives percentages for the 100th of one percent, so it is not the question of rounding.

  In the past, I could always correlate the use of the CPU in the process and you could see that was consuming the CPU and kill him if necessary.  But now I don't know what is happening.  Any suggestions on what to check would be appreciated.

  I also, tried MSCONFIG and services and putting in service of the elements, everything makes sense, so I didn't try a clean boot.  I have a system restore a few weeks ago (and the data is backed up each night), but I'd rather not have to go through all this.

  Thanks for the help.

  Hello Bob,

  I'm glad to know that you have addressed the issue.

  Your efforts to solve this problem is appreciated. We appreciate the time taken by you to share the resolution. I don't know that it would be beneficial to other members of the community as well.

  Please do not hesitate to answer, in the case where you are facing in the future other problems with Windows.

  Thank you

• Constantly higher than 50% even when idle CPU usage. NT kernel & system?

  Hi, I wonder if anyone can help? I built my own computer and after I installed Windows 7 and only the drivers for the respective hardware, my CPU usage is consistently above 50% and jumped off from top down to anywhere between 50 to 100%?

  I have a motherboard Biostar GF82000E with an AMD Athlon II Quad processor and also a Nvidia 9400 GT graphics card. For which I have all drivers up to date.

  I tried to install Windows 7 completely fresh with nothing installed, I ran Task Manager, immediately, and you can see from the picture what I mean...

  http://www.craigfews.co.UK/images/Untitled5.jpg

  Many thanks in advance,

  For any question on Windows 7:

  http://social.answers.Microsoft.com/forums/en-us/category/Windows7

  Link above is Windows 7 Forum for questions on Windows 7.

  Windows 7 questions should be directed to / stationed there.

  You are in the Vista Forums.

  See you soon.

  Mick Murphy - Microsoft partner

• The CPU usage of Flex-2 15 30% when idle after upgrade to Windows 10 * contains large Images *.

  BTW my 15 Flex-2 upgrade to Windows 10 Home took place, working after a few minor updates manual driver (WLAN, graphics)...

  However, since the upgrade, I feel an annoying symptom, which has been reported by users of other brands as well.

  Although I already follow most of related advice (known assassination unnessary process, change of reports), the CPU usage is still constantly around 30%, causing the fan to operate continuously and even more unsatisfactory: extremely affecting the battery life! Using processexplorer that I discovered, that svchost (or one of its processes) is at the origin of the problem, not one of the applications. As I am not able to dig deeper, I wonder what measures taken so far by Lenovo to have the Microsoft fix this problem.

  Attached: screenshots 'notification', 'Treaty', 'system '.

  Other tips are appreciated.

  

  

  

  Mod edit: added warning about large images for those who have slow Internet service.

  UPDATE Oct10:
  

  Went to manually check tile Lenovo Support and offered an update of SystemInterfaceFoundation.exe.

  Run the update and believe it or not: the CPU usage is almost back to normal (about 4%) with browser open FF and AV SW race. less than 2.5% use svchost. Fan turns down to 'stop' or low speed.
  Can someone pls? Be wary of situation for the next few days...

  Update Oct11:

  No idea how to mark this "resolved" thread: System runs stable like a charm. Quiet, low CPU utilization and the normal battery life.

  No other text. Problem solved. See above

• What is the "system idle process" and why it seems to freeze my Windows XP and show the 99% CPU usage?

  This problem sometimes occurs when my computer starts. Today, it happened and actually picked up my internet connection, which also won the update of Flash Player and Internet Explorer open. Also, I couldn't get the Start Menu to open. What is happening to the CPU is too busy doing something else? Is there a way to refresh the process or the CPU?

  Hi Hope_H,

  1. did you of recent changes on the computer?

  2 when was the last time it was working fine?

  3. do you have security software installed on the computer?

  4. you receive an error message?

  Checking service or program uses high processor usage by using Task Manager.

  To view the CPU usage, press CTRL + ALT + DELETE, click Task Manager, and then click the performance tab.

  Overview of the Task Manager

  http://www.Microsoft.com/resources/documentation/Windows/XP/all/proddocs/en-us/taskman_whats_there_w.mspx?mfr=true

  It is possible that some third-party programs installed on the computer is causing the problem.

  I suggest that you put the computer in a clean boot state and check if it helps.

  To help resolve the error and other messages, you can start Windows XP by using a minimal set of drivers and startup programs. This type of boot is known as a "clean boot". A clean boot helps eliminate software conflicts.

  See the link below to learn more about how to clean boot.

  How to configure Windows XP to start in a "clean boot" State

  http://support.Microsoft.com/kb/310353

  Reset the computer to start as usual

  When you are finished troubleshooting, follow these steps to reset the computer to start as usual:

  (a) click Start, type msconfig in the search box and press ENTER.

  (b) If you are prompted for an administrator password or for confirmation, type your password or click on continue.

  (c) under the general tab, click the Normal startup option, and then click OK.

  (d) when you are prompted to restart the computer, click on restart.

• In windows Server 2003 R2, standard edition, its CPU usage showing the use of 100%

  I have windows Server 2003 R2, standard edition, in recent weeks its CPU usage showing the use of 100%. While treated cheking, a process called 'System', showing the CPU from 97 to 98%, we have stopped other services one by one like Trendmicro and backup but none advantage, can you please help us?

  Hello

  Since you have a problem with Windows Server 2003, you can ask your question in the TechNet for Windows 2003 Server GENERAL forum.

  http://social.technet.Microsoft.com/forums/en-us/winserverfiles/threads

• Svchost.exe causing 100% cpu usage during the update of windows, even when disconnected.

  I recently had to re - install windows xp on a new hard drive for replacement. My version of xp home edition, SP2 OEM installation disc. (This is ith group included IE6)

  Once installed and running, could access windows update.

  Read all the threads associated etc. and installed SP3, disc after downloading microsoft on another pc. Installed after three trys, first two caused various mistakes, but third attempt seems OK!

  I've also updated the IE6 to IE8, as some sites obviously did not work properly with the older browser.

  Now go do the automatic updates, or log for manual updates... BUT!

  During the process, my cpu fan comes on fast and permanently! The CPU usage is showing that 100%, pc slows to crawl, the mouse becomes slow etc.

  This has never happened before on this machine before you reinstall clean, he had already automatically updated to SP3 and went very well, it was some time ago, before the failure of hard drive, and it has never had this problem!

  Only since having to do a cleaning manual update and re - install.

  The culprit seems to be svchost.exe, once it is used by the update, running the cpu at 100% and continues to do so EVEN after stopping the service, until I manually stop with the Task Manager!

  The svchost.exe instance showing a high is use: SYSTEM.

  According to the files of help here, it is a known issue and a fix KB927891 was issued for SP2, but this should NOT be necessary for SP3, and in fact difficulty used to perform anyway under SP3!

  Ideas for a guy to fix?

  I appreciate the support for XP runs out quickly, and after this update of windows will be redundant, but in the meantime it is always useful!

  Also if I turn off the automatic updates, how can I stop this annoying popup warning bubble?... I can't live without updating, but this bubble nag drives you nuts! :)

  OK just a update, now running cool and 100% auto update and manual update... How? I hear you ask...

  Well I had a beer and a reflection and came to the conclusion, it must be 'order' in which I updated the clean installation of XP.

  Origin, I loaded the old OEM disc new hard disk, loaded the drivers etc, then stop at windows update for updated files.

  Who told me my old incompatible browser and suggested an upgrade.

  I downloaded and installed IE8... still no joy, reading the forums comments I downloaded and installed SP3... which SEEMED to work, BUT then all the hassle of cpu to 100% with the automatic update and updated manual on the windows don't update site!

  So I just gritted my teeth, formatted the drive, another OEM of XP Home Edition SP2 installation loaded the drivers, installed a copy saved to SP3 and after restarting, THEN installed a saved copy of IE8 and THEN trotted off the coast to the windows update site... low and behold, it the connection without problem, did a search, and required updates appeared on the screen without delay all 123 of them...! :)

  Did the updates, restarted and everything was fine, updates automatic in market and left the machine, after about 30 minutes appears the yellow shield, and it downloads a couple more update files without problem.

  All this time I followed the via the Task Manager CPU usage and the strange spike waited 100% apartment, it was on average from 5 to 20%!...so a great improvement has this effect, by simply changing the order of the updates installed from the original! SP3 IE before IE8.

  May not work for all have to do a clean install because of the HD failed, but its worked for me, and I am once more a "happy bunny!

  Dave was soon.

• The CPU usage reaches 100% and the system locks requiring a hard restart on Windows Vista

  All of sudden the CPU usage reaches 100%, which makes the system dead slow and finally the system stops responding. I have to do a hard reboot to continue using the system.

  I tried to open the Task Manager to see if there are programs or services running that can consume resources and found nothing. The remains of number of CPU use, the graph to use but less than 10 years is hovering at 100%.

  I did not change my system.

  The problem appears on the two accounts that I installed on my operating system.

  I removed all the unwanted programs since the system was started.

  I have McAfee Antivirus installed for more than a year now, and the latest antivirus patches have been installed.

  Help, please.

  Thank you in advance!

  Hello

  What antivirus/antispyware/security products do you have on the machine? Be one you have NEVER
  on this machine, including those you have uninstalled (they leave leftovers behind which can cause
  strange problems).

  ----------------------------------------------------

  Follow these steps:

  Start - type this in the search box-> find COMMAND at the top and RIGHT CLICK – RUN AS ADMIN

  Enter this at the command prompt - sfc/scannow

  How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
  generates in Windows Vista cbs.log
  http://support.Microsoft.com/kb/928228

  Also run CheckDisk, so we cannot exclude as much as possible of the corruption.

  How to run the check disk at startup in Vista
  http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html

  ==========================================

  After the foregoing:

  How to troubleshoot a problem by performing a clean boot in Windows Vista
  http://support.Microsoft.com/kb/929135
  How to troubleshoot performance issues in Windows Vista
  http://support.Microsoft.com/kb/950685

  Optimize the performance of Microsoft Windows Vista
  http://support.Microsoft.com/kb/959062
  To see everything that is in charge of startup - wait a few minutes with nothing to do - then right-click
  Taskbar - the Task Manager process - take a look at stored by - Services - this is a quick way
  reference (if you have a small box at the bottom left - show for all users, then check that).

  How to check and change Vista startup programs
  http://www.Vistax64.com/tutorials/79612-startup-programs-enable-disable.html

  A quick check to see that load method 2 is - using MSCONFIG then put a list of
  those here.
  --------------------------------------------------------------------

  Tools that should help you:

  Process Explorer - free - find out which files, key of registry and other objects processes have opened.
  What DLLs they have loaded and more. This exceptionally effective utility will show you even who has
  each process.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896653.aspx

  Autoruns - free - see what programs are configured to start automatically when you start your system
  and you log in. Autoruns also shows you the full list of registry and file locations where applications can
  Configure auto-start settings.
  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902.aspx
  Process Monitor - Free - monitor the system files, registry, process, thread and DLL real-time activity.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896645.aspx

  There are many excellent free tools from Sysinternals
  http://TechNet.Microsoft.com/en-us/Sysinternals/default.aspx

  -Free - WhatsInStartUP this utility displays the list of all applications that are loaded automatically
  When Windows starts. For each request, the following information is displayed: Type of startup (registry/Startup folder), Command - Line String, the product name, Version of the file, the name of the company;
  Location in the registry or the file system and more. It allows you to easily disable or remove unwanted
  a program that runs in your Windows startup.
  http://www.NirSoft.NET/utils/what_run_in_startup.html

  There are many excellent free tools to NirSoft
  http://www.NirSoft.NET/utils/index.html

  Window Watcher - free - do you know what is running on your computer? Maybe not. The window
  Watcher says it all, reporting of any window created by running programs, if the window
  is visible or not.
  http://www.KarenWare.com/PowerTools/ptwinwatch.asp

  Many excellent free tools and an excellent newsletter at Karenware
  http://www.KarenWare.com/

  ===========================================

  Vista and Windows 7 updated drivers love then here's how update the most important.

  This is my generic how updates of appropriate driver:

  This utility, it is easy see which versions are loaded:

  -Free - DriverView utility displays the list of all device drivers currently loaded on your system.
  For each driver in the list, additional useful information is displayed: load address of the driver,
  Description, version, product name, company that created the driver and more.
  http://www.NirSoft.NET/utils/DriverView.html

  For drivers, visit manufacturer of emergency system and of the manufacturer of the device that are the most common.
  Control Panel - device - Graphics Manager - note the brand and complete model
  your video card - double - tab of the driver - write version information. Now, click on update
  Driver (this can do nothing as MS is far behind the certification of drivers) - then right-click.
  Uninstall - REBOOT it will refresh the driver stack.

  Repeat this for network - card (NIC), Wifi network, sound, mouse, and keyboard if 3rd party
  with their own software and drivers and all other main drivers that you have.

  Now in the system manufacturer (Dell, HP, Toshiba as examples) site (in a restaurant), peripheral
  Site of the manufacturer (Realtek, Intel, Nvidia, ATI, for example) and get their latest versions. (Look for
  BIOS, Chipset and software updates on the site of the manufacturer of the system here.)

  Download - SAVE - go to where you put them - right click - RUN AD ADMIN - REBOOT after
  each installation.

  Always check in the Device Manager - drivers tab to be sure the version you actually install
  presents itself. This is because some restore drivers before the most recent is installed (sound card drivers
  in particular that) so to install a driver - reboot - check that it is installed and repeat as
  necessary.

  Repeat to the manufacturers - BTW in the DO NOT RUN THEIR SCANNER device - check
  manually by model.

  Look at the sites of the manufacturer for drivers - and the manufacturer of the device manually.
  http://pcsupport.about.com/od/driverssupport/HT/driverdlmfgr.htm

  How to install a device driver in Vista Device Manager
  http://www.Vistax64.com/tutorials/193584-Device-Manager-install-driver.html

  If you update the drivers manually, then it's a good idea to disable the facilities of driver under Windows
  Updates, that leaves about Windows updates but it will not install the drivers that will be generally
  older and cause problems. If updates offers a new driver and then HIDE it (right click on it), then
  get new manually if you wish.

  How to disable automatic driver Installation in Windows Vista - drivers
  http://www.AddictiveTips.com/Windows-Tips/how-to-disable-automatic-driver-installation-in-Windows-Vista/
  http://TechNet.Microsoft.com/en-us/library/cc730606 (WS.10) .aspx

  Hope these helps.

  Rob Brown - MS MVP - Windows Desktop Experience: Bike - Mark Twain said it right.

• Windows Vista High CPU usage

  Everytime I open Windows Media Player and Internet Explorer, the CPU usage goes to 95% to 100%. Windows Media Player also responds to slow down even if it's the only program that is open.

  The problem started when I installed McAfee Internet Security and what Vaio Media settings have been configured.

  Please help how to solve this problem.

  Thank you.

  Hello

  Seems to me that you already answered your own question. Uninstall the McAfee software, the problem goes away? Good luck, Rick Rogers, aka "Crazy" - Microsoft MVP http://mvp.support.microsoft.com Windows help - www.rickrogers.org

• Windows 7 update - slow download, svchost high CPU usage

  I have a problem downloading by using the Windows Update application. This problem started after January 2016.  In the past, the request of update seems to work without the use of the svchost high CPU and with a reasonable download time.  There is usually a delay until the download has started, but then they ended quickly.

  I have 4 computers: 3 running Windows 7 Pro (CPU - Intel dual, i5 & i7) and 1 running Windows 7 Home (Intel i3).  If the problem is not related to the CPU hardware as best I can tell.

  My update setting is 'check for updates but let me download and install ".

  The Windows Update process includes 3 steps:
  1. identify the important and recommended updates for your computer.
  2. the selection and download updates.
  3. the creation of the restore point and of the installation, the selected updates.

  My problem is step 2, download the selected updates.  This happens on all 4 systems, and I do not expect a download to be this CPU load.  The download time is too long on all systems 4.

  My online search for answers has been frustrating, but several posts said search for viruses, malware and Trojans.  I ran Malwarebytes (free), Windows Defender, Norton Security and ESET (online) on systems and no objects are found.

  My most recent experience involved my Lenovo 7847 system (Intel dual core). Monday, May 23, I checked the updates and there were 15 updates important and 3 optional updates listed.

  After reviewing the updates, I chose the 15 updates and started the download process.  The svchost.exe that is associated with the update happened to 45-60% CPU usage, update status showed no size or % finished and the task manager - network or explore the process did not show any activity download for a long time.

  Finally, after about an hour, the update showed the download size and the % downloaded.  Svchost usage remains high during the time of whole download.  Once the download is complete, the restore point was created and updates have been installed, who also took some time (but it would be I/O CPU & Drive dependent).

  The download status has not changed during most of the time that the download process is running.  The Task Manager and process explore both show very little network activity up to that very near the end of the download procedure. There is therefore no real indication that the process is blocked or just turn very slowly.   It almost seems that the Microsoft servers are overloaded, they delay the download for some reason, or the process svchost and sub-process fail to create good handshake with the server for download.

  My Questions:

  1. Why is svchost usage so high when nothing seems to happen?
  2. Why does take an hour or more to download the updates?  These aren't the huge file sizes, and this attempt to update was almost 2 weeks after Patch Tuesday, then Microsoft servers should not be overloaded.
  3. Why is the situation unchanged for so long during the download process?
  4. most important, what can I do to change this situation?
   
  Thanks in advance for your help.

  My 'update problem' seems to have changed.  Checking updates takes a lot of CPU resources and a lot of time.

  We will leave well enough alone for now. [It took 3-4 hours for MU download/install updates of June on my Win7 boxes].

  But please bookmark this thread. If the behavior persists in July - and especially in August, respond to this thread instead of starting a new. Good luck!

• Oh, the irony? High DPC latency with idle CPU - gives more stable, more low-latency DPC CPU usage 100%

  Just like in the title,

  I tried everything, disabling components, elimination of most of my RAM, update BIOS and loading failsafe and optimized defaults, etc. - and one thing I noticed is that Prime95 running x 64 on all hearts eliminates the peaks high in 1.2.0 DPC latency checker. Audio stuttering, what original research for corrections me, brought me to DPC latency checker.

  It's really strange that the 100% CPU usage would cause the DPC latency stabilize (mine hovers around 350-450 microseconds in the full use of the CPU, but in use slowed parameters or moderate apparently something causes a DPC peak at ~ 4100us max).

  Let me know if you figured it out!

  Model name : GA-EP45-UD3P(rev. 1.6)
  --------------------------
  M/B Rev : 1.6
  BIOS Ver : FE
  Purchase garage : Newegg.com
  -------------------------------------------------------------------------------
  Brand VGA : ATI model : 5770
  Brand CPU : Intel model : Quad 9400 speed : 2.66
  Operating system : Win 7 64 bit SP :
  Brand memory : G.SKILL Type : DDRII
  Memory size : 4 GB, speed : 800
  Power supply : Antec Neopower 550 W

  Hi Frankie,

  We understand that you too met the same scenario as this 6 year old thread. Some resolutions are always topical, while others are no longer applicable due to constant updates and corrections in the course of the last years.

  However, to resolve your concern, you can view article utilization of the processor for Windows 7 .

  Let us know how it goes.

• More than 50% CPU usage by explorer.exe * 32 in idle state

  Hello

  I have 49 and 50% CPU usage just for the explorer.exe process, it started a week back. The speed of my computer slowed down considerably and it also warms up a bit. After looking at the subjects similar in different forums, I stopped all the MSCONFIG startup items, but the problem remains. Any help would be really appreciated.

  

  Hi Sumit,

  Thanks for posting your question on the Forum of the Microsoft community.

  I would be grateful if you can provide us with the following information to help us better understand the issue.

  Did you change (hardware or software) on your computer before the show?

  Try it out below mentioned methods and see if it works for you.

  Method 1

  I suggest to run the fixit provided in the following link and check if it helps.

   

  Difficulty of Windows system performance slow computer problems

  Method 2

  If the problem persists, you try to run the fix provided in the Microsoft article mentioned below.

   

  High utilization of the processor in the Explorer.exe process

   

  Method 3

  If the problem persists, try to start the computer in Mode safe mode and check the status.

  See the link to start in safe mode.

   

  Startup options (including safe mode).

  http://Windows.Microsoft.com/en-in/Windows7/advanced-startup-options-including-safe-mode

   

  Hope it would help. If problem persists always post back with the current state of your computer and the result of the proposed suggestion, we will be happy to help you.

  Thank you.

• Filter host Microsoft windows search burning my CPU usage.

  Original title: Filter host Microsoft windows search

  Filter host Microsoft windows search burning my CPU usage.

  Help me.

  Had the same problem and DiaconuDanielsolution worked for me as well - took some time to recreate the index but then everything was fine - thanks

• Windows 7 100% on Dv6 H - P CPU usage

  Everyone knows maxed out the CPU usage by "research protocol host" and/or "permon", "Indexing" on H - P laptop, I suggest 'Power Management' to return to 'HP' recommended. It seems to cause some 'loop' or conflict in the HP software. It of a simple solution, drove me crazy for weeks. But I copy from the use of the processor 100% by another (stupid) attempt to manually manage the power settings. Hope this helps some of you.

  Change the "High performance" power plan please. You still have the high utilization of the processor? "A programmer is just a tool that converts the caffeine in code" Deputy CLIP - http://www.winvistaside.de/

• Allowed to 13.0a1 nightly update. It is hung. Now the > 50% CPU usage

  This morning helped the nightly update manifest. However, he hung Mid-implementation to date. Noticed CPU has increased substantially to about 85%. Tried disabling add-ons, safemode, reboot... Processor clocked constantly higher than 50% now even without launching nightly. Stakes never 100%, but extends between 50% and 92%. I'm puzzled! Ran Malwarebytes and ESET NOD (last)... nothing detected. I completely shut down and rebooted 5 x now. Same question.

  Searched with keywords "CPU usage" excessive and inactive. Found the following link

  http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-performance/presentationfontcacheexe-uses-50-of-my-CPU/4200fe85-458F-4f19-b791-1fe5395304da

  Followed the instructions and it worked like a charm. CPU now idling between 4% and 12%. Candy!