Windows 7 has High CPU Usage and slow performance

Anonymous
2009-11-18T04:59:29+00:00

Hello all,

I've searched the forums, but was unable to find anything relevant.  I recently upgraded to Windows 7 from Vista.  It was running fine for about a week then all of a sudden everything started running very slow.  I checked the the processes tab in task manager and I am constantly running at 70-80% CPU usage.  I think this is very high considering the computer is only a few months old.  It seems like others are having this problem as well, but no real solutions.

I have turned off file indexing as well as disabled the HD audio device. 

Please help!

Here are my hardware specs:

AMD 9550 Quad-Core

64-bit

6GB Ram

Thank you in advance for your help.  I am ready to toss this thing from my second story window.

Windows for home | Previous Windows versions | Windows update

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Anonymous
2010-01-02T19:29:42+00:00

I think the answer might be the Windows Media Player and Windows Media Network Sharing Services as zxypher suggested.  The fix for that is to adjust were the Windows Media Player services search for media files. 

It seems to be a bad problem for me as well upgrading from Vista to Windows 7.  The default search location for media is set to C:\Users\ instead of down in the My Music folders.

Go into Media Player.  From the menu -> File -> Manage libraries -> select each library (music, video, pictures, recorded tv [if you have]) and check the paths that it is managing and make sure it is not too close to the root of the C: drive.  For example, it should be something like c:\users\Jim\Music and c:\users\Public\Music BUT NOT **** c:\users as they will cause the whole directory tree to be re-indexed over and over (when you surf the web or change any files in your profile).

If you have multiple users who login to the computer, you may need to repeat the process for each user if all users have added managed folders which are actively changing on a regular basis.

If this is your issue and you do it correctly, then the high CPU should drop in minutes (or seconds down to nothing).

This is the CORRECT way to adjust the WMNSS/WMPNetwk.exe process issues.

A little more information can be found here:

http://social.answers.microsoft.com/Forums/en-US/w7performance/thread/2fe4901b-2eaf-4a99-b487-e6a6213b10b3/

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  1. Anonymous
    2010-06-28T00:20:54+00:00

    I have been getting a 50% CPU usage for about a month.  I have tried Process Explorer to find the culprit, Andre's method, device manager, msconfig safe mode, disabling services, updating drivers, and everything on all of these forms to try and solve it.  None of the solutions worked.  I found out that the solutions was to simply disable UMBus Root Bus Enumerator in device manager.  From process explorer and Andre's method, I found that ACPI.sys was the process causing about 25% system usage, 15% DPC, and 10% interrupts.  I looked all over for a solution to the problem and in every forum, nobody's solution worked.  THIS PROBLEM WAS DRIVING ME CRAZY!!!  I finally started disabling everything is device manager, and restarting my computer after each one.  It came down to the last entry under the System Devices dropdown.  I just want to recommend everyone to try it who hasn't found a solution: TRY DISABLING UMBUS ROOT BUS ENUMERATOR IN DEVICE MANAGER UNDER SYSTEM DEVICES.  To anyone who knows what this actually is: are there any potential consequences for disabling this?  Let me know.  I'll post if it comes back.

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  3. Anonymous
    2010-06-21T10:27:25+00:00

    This solved my problem, thanks! I place my movies and music in the root of a hard disk and media player auto-detected it in the library. Removing it as suggested stopped the hogging...

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  4. Anonymous
    2010-05-31T04:52:40+00:00

    I thnk I have the same problem. The problem is that there is not a suspicious process. The process using CPU  most is the  usually taskmanager or the whatever process I am using to watch the CPU usage. This is not cause by CPU ability as I don't believe a P8700 CPU can't affort the calculation power requried by such a tool.

     

    Hi Steve,

    what is using the CPU too much? A service or application? Or is the system using it? I posted 2 links to make a xperf trace to see which driver is causing the SYSTEM usage.

    "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

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