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Windows 7: System interupts using 17% or more processor all the time


11 Apr 2014   #1

Windows 7 Home Premium 64bit
 
 
System interupts using 17% or more processor all the time

A week or so I noticed that system interrupts was using a significant percentage of my processor all the time. Upon googling the issue I found that it is most likely a hardware driver error. I have done a in place reinstall or upgrade of the following drivers: graphics, chipset, audio, network cards, hard drive, BIOS, and CD/DVD drive. I have also gone through Device Manager and one by one disabled devices that had the option to be disabled, except for the devices under the sub-menu system devices, in order to try to find out what device maybe causing the problem. However, nothing has worked so I am turning to the forum for help. It seems like after restarting my computer it takes a day or so for the problem to reoccur.


My System SpecsSystem Spec
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13 Apr 2014   #2

Windows 7 Home Premium 64bit
 
 

Hello, anyone there. I downloaded Windows Performance Analyzer (Xperf) and ran it to look for what was exactly causing the problem, it seems to be ataport.sys, but I'm not sure exactly what im looking at. Any help would be appreciated. If anyone is willing, I can send my Windows performance recorder file so you can take a look.
My System SpecsSystem Spec
15 Apr 2014   #3

Windows 7 Home Premium 64bit
 
 

I ran Latencymon, also here is what it looks like.

Anyone know how to fix this.


Attached Thumbnails
System interupts using 17% or more processor all the time-system-interupts-2.png  
My System SpecsSystem Spec
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15 Apr 2014   #4

Windows 8.1 64-bit, Windows 7 Home 64-bit.
 
 

ATAPORT.SYS causing random Blue Screen. - Microsoft Community

Check for MBR-virus rootkit.win32.TDSS.tdl4, then check your RAM for errors.
My System SpecsSystem Spec
15 Apr 2014   #5

Windows 7 Home Premium 64bit
 
 

I ran TDSS and nothing came up. I will run full memory check tonight and update you in the morning.
My System SpecsSystem Spec
16 Apr 2014   #6

Windows 7 Home Premium 64bit
 
 

I ran extended memory diagnostic for 5 scans. There were no errors.
My System SpecsSystem Spec
25 Apr 2014   #7

Windows 7 Home Premium 64bit
 
 

I still have not come to a resolution on this problem. Here is a link to a Xperf/windows performance analyzer trace file if anyone can offer some assistance it would be much appreciated.

https://onedrive.live.com/redir?resid=59359A7BEC936972!5655&authkey=!AHSLDpOkaMcbav0&ithint=file%2c.zip
My System SpecsSystem Spec
26 Apr 2014   #8

Windows 7 Home Premium 64bit
 
 

I uninstalled AVG and have problem has persisted.
My System SpecsSystem Spec
11 May 2014   #9

Windows 7 Home Premium 64bit
 
 

It has been 36 hours since the problem has occurred so I think it is fixed.

First off my problem (high CPU usage from System interrupts) occurred only when there was a high amount of disc usage, such as when copying files, opening a program or running a program that accesses the disk a lot when running, like a virus scan.

Here is what I did, though I am not sure exactly which fixed the problem.

I downloaded and ran Auslogics Registry cleaner, Auslogics Disk defragmenter, and Auslogics Registry Defragmenter. When running the Disk defragmenter, I selected the option to move system files to the front of the disc and ran the defrag and optimizer, as opposed to solely the defrag.

Then I ran Chkdsk using the following Administrator command prompt command: Chkdsk /f /r :C

After words, I downloaded Seatools from Seagate, and ran the Fix All long option on my hard drive.
My System SpecsSystem Spec
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 System interupts using 17% or more processor all the time




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