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Windows Server 2003 R2 Slow


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#1 ITWorx

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Posted 12 August 2011 - 01:27 AM

Hi

I have a client that is running Windows Server 2003 R2 and is running extremely slow. The server was installed last year, but it gradually got slower and now it is unbearably slow. After troubleshooting I found that taskmgr.exe was using roughly about 50% of CPU usage (reason I say roughly is because it fluctuates between 48 and 52). After rebooting I see that explorer.exe used roughly 50% as well and then after another reboot, services.exe is using roughly 50% as well. So explorer.exe and services.exe alternate between using the other half of CPU usage, but after a long time only taskmgr.exe is left using 50%.

I have searched the internet for a solution but none of the stuff I found helped. Ok in safe mode it works fine and fast with no problems. I tried stopping services one by one until all where stopped and it was still slow. I scanned with Kaspersky and it came up with nothing. I had experience with viruses before so I looked in the registry for anything odd and couldn't find anything. Under startup there are only a few items and all of them I configured to startup. One forum said it was an update that caused the problem, so I left Automatic Updates running last night to see if that works.

<log removed>

Any help on this would be GREATLY APPRECIATED Thanx.

P.S. I know I haven't run any anti-malware/spyware programs, the reason for this is 1. it is too slow to install anything (it took me 2 hours to install HiJackThis) and 2. I don't think it has malware/spyware (I could be wrong) because apart from the slowness there is nothing suspicious about it, every program works fine, registry has nothing odd (well to my knowledge) and I have clean out temp files etc. with no problem.

If you require any more info please let me know.

Edited by elise025, 05 October 2011 - 08:21 AM.
Log removed so topic can stay in this forum ~Elise


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#2 LouisR47

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Posted 04 October 2011 - 12:34 PM

I would try a defrag first. also what do you have the server running? meaning DHCP or what. What are the specs on the system?

#3 Baltboy

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Posted 04 October 2011 - 03:33 PM

Since it was okay at first and then became progressively slower and not slower overnight I would not assume an update I would assume either hardware or building network resources.

First thing I would do is check the hard drive space remaining. Shrinking hard drive space can put a hurting on system performance if it starts impacting the page file. The page file at default is 1.5 x the amount of system memory. So if you have 8 GB of RAM then the paging file will be 12 GB which is a big chunk. Best case is to put the page file on another drive to eliminate any I/O conflicts with the server trying to access OS files.

Check the server manufacturer for any updates or patches. Sometimes they update after microsoft updates due to issues with the new updates.

Is the actual network pulling access from the server? If they have added more clients, software to the server or are using more server resources that can cause it to get worse over time too.

I would setup a performance monitor of the critical sub systems like process, memory and disk to see if there is other things contributing to the processor usage you are seeing in task manager.

Finally since safe mode only starts the basic needs to get the server running and apparently the services are not to blame ,since you shut them down and saw no improvement, I would look at the programs installed on the server since they may be the real culprit due to memory leakage and the like.
Get your facts first, then you can distort them as you please.
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