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CscService is generating 100% CPU load every 4 minutes

Hi there!

First of all, I searched the forum and google to find any help but to no avail. Some google hits described the same phenomen I witness but gave no solution.
So here is my problem:

I use offline files to sync my personal folders between my notebook and my PC at home. In this regard everything works fine, however I observed that my notebook got unresponsive for a minute or so every 4 minutes. After a long search and trial I tracked the problem down to svchost and CscService.

Disabling the service or manually switching to offline mode in Windows explorer helps to prevent the cpu spike but that's a work around, no solution. As soon as I am connected to a LAN (not necessarily the LAN with the file server attached) the problem occurs again.

I know that this problem did not start with my usage of offline files. It worked for quite some time without problems, but unfortunatlely I cannot recapitulate when this problem occured for the first time. However after 1 year of extensive use of my Vista laptop I decided that it was time for a clean installation. So I installed Vista 32 ultimate again, used SP1+2, installed the necessary Acer notebook drivers and a few programs (not that many!) and moved my personal files to the server, thereby enabling offline files again. And you guessed it - the problem reoccured!

System protocol does not give any indication, neither does the offline files protocol (eventvwr.msc - application and serviceprotocol - Microsoft - Windows - Offlinefiles - operational)

Since the problem was nonexistent in the first place I believe another driver / service or a specific windows update has to be responsible.
The following none-MS-services are active:
AVG-Virus scanner (not the culprit)
Gt-detect (part of Option umts-card driver, not the culprit)
Servicelayer - Part of nokia connection manager
vmware nat
vmware dhcp
vmware authorization (none of the vmware services are responsible)
xaudio service - Part of notebook audio drivers

Considering that I have a fresh vista install and only very little none MS software installed so far I have no idea where to look at now?

http://img387.imageshack.us/img387/1921/taskmanagercpuspike.jpg
^^ that's how my task manager always looks like. I could set my clock after that...


Thanks for your time
pille
Hello pille1234,

 Thank you for using Microsoft Windows Vista Forums.

 I have added steps below some of which you have already verified.  Please let us know status on this.  Thanks!

 

Please try the following to narrow down the issue:

 

1.    Scan your system to make sure that the system is virus free. Temporarily disable your security software (Anti-virus software, firewall, etc.) to see if this problem is gone.

 

2.    If you have recently installed any software, hardware or drivers, please remove them.

 

3.    Perform a Clean Boot to check the issue:

 

How to troubleshoot a problem by performing a clean boot in Windows Vista

http://support.microsoft.com/kb/9291355

 

Since you have found that CSCService.exe caused high CPU utilization, please check where the “CSCService.exe” locates.

 

4.    Please try the hotfix:

 

Changes to an offline file are not saved to the server when files are synchronized in Windows Vista

http://support.microsoft.com/kb/935663

 

5.    Re-initialize offline files cache

 

How to re-initialize the offline files cache and database

http://support.microsoft.com/kb/230738

 

If the issue persists, please run Process Explorer and collect some information for our further research:

 

1.    Download the Process Explorer

 

Process Explorer

http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx

 

2.  After downloading, extract “ProcessExplorer.zip” to the Desktop and run “procexp.exe”.

3.  Click View and select “Show Lower Pane”.

4.  Click View and click “Lower Pane View - DLLs”.

5.  Navigate to “CSCService.exe” and highlight it.

6.  Click “File – Save AS” to save the process data of “CSCService.exe” on your desktop as a TXT file.

7.  Please post contents of the TXT file to this thread.

James Microsoft Answers Support Engineer Visit our Microsoft Answers Feedback Forum and let us know what you think.

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Thanks for your response.

to your questions / remarks

  1. No virus found
  2. see above, fresh windows installation
  3. your link seems to be invalid. I can't find kb9291355. Futhermore I'm not sure what you mean with locating cscservice.exe. Afaik there is no exe file at all, only dll files. I assume it is cscsvc.dll.
  4. Although the problem description doesn't fit I installed the hotfix anyway. -> No visible difference.
  5. Tried reinitialization a few times with my last windows installation, no success.
With regard to the process explorer, I can only navigate to the respective svchost.exe simply because there is no cscservice.exe.  svchost.exe doesn't show any dll information in the lower pane.

No success so far, but I really appreciate your input.
Regards

Pille

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Had the same issue. Disable the Superfetch service. This is what is causing your machine to lag. You don't really need it anyway. it just cache to help open up apps faster.

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have same problem in my windows server 2008 r2. couldn't find superfetch service in my services.

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Last updated December 13, 2023 Views 45,870 Applies to: