Windows 8 and 8.1 Forums


CPU Usage 100% when not in Task Manager

  1. #1


    Posts : 3
    Windows 8

    CPU Usage 100% when not in Task Manager


    Hello, I've seen this problem posted repeatedly in SevenForums (CPU stuck @ 100% unless task manager is open Solved - Windows 7 Help Forums) and the like. I have the same problem, but I don't have the igfxupdate.exe files in my System 32 folder or SysWOW64 folder. When I open the task manager, I see the CPU usage go from 90-100% down to it's usual 10-20%. When I look on Process Explorer, I see that my 'System Idle Process' is at 70-80%. It looks like I have this virus, I have the main symptom, but I don't have the file in my folder, and I can't use the "sc delete SearchIndexer" that people type in because I get a 'Open Service FAILED 1060: Specified service doesn't exist as an installed service' error code. When I catch the CPU going down after I open it, it shows that task manager is using 65% CPU, than goes down like nothing happened, returning to normal. How do I fix this? Why do I have man of the symptoms of this virus but not others?
    Attached Thumbnails Attached Thumbnails prcessexplr.PNG   cmd.PNG   taskmngr.PNG  

      My System SpecsSystem Spec

  2. #2


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    You need to click on the CPU column in task manager to find out what Process(s) are exactly eating up CPU resources. Your process Explorer snapshot only shows 44% CPU use.
      My System SpecsSystem Spec

  3. #3


    Posts : 3
    Windows 8


    I can't do it fast enough. Like the people who had the issue on Windows 7 and some here, it goes back to 20% when I look into the task manager. When I try to look it shows Task manager using 60% CPU, then going back down to the usual low percentages
      My System SpecsSystem Spec

  4. #4


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    That depends on what the process is, and what it is doing. You can use Process Explorer instead of the Task Manager. As long as the process is not staying at the higher %, then you are fine.
      My System SpecsSystem Spec

CPU Usage 100% when not in Task Manager
Related Threads
I began noticing that it was a problem after it started rapidly climbing past 70% today (before it was lingering at 60% for months). I have been researching the problem for a few hours and most of the problem solutions I have found do not work for my current problem. It currently is lingering at...
Good day all, My task manager is showing an unusually high CPU usage by the system, anywhere between 20-30% when the computer is idling. I've run the sfc /scannow utility and it found some corruptions, which were then fixed by the DISM utility. However the task manager is still showing that super...
As my machine doesn't support SLAT in HyperV I am using VMlite XP mode to run some 16 bit programs I need. Very occaisionally VMlite hangs on close after it has saved state or shutdown the guest machine. I go to task manager and click end task on the Workstation GUI and it closes but very...
IE vs 11 Task Manager? in Browsers & Mail
I have been looking for a positive answer to my question: "How do you disable/remove the Down Load Task Managerbox that keeps popping up when I try to open a downloaded file?" I wanted to check out a different browser...I downloaded it andchecked it for virus' and malware and tried to open...
I've added task manager to my scheduled tasks at logon. Everywhere I google, they say to put the /min or -minimized arguments in it to launch it minimized, except neither option works for me. Task Manager launches, but just sits there on my desktop. Is there a new argument for minimized in...
Hi! I bought a new desktop last year to run high-end software used for my degree; I installed Windows 8 on it, having got on with it on my laptop. I did notice though, after venturing into the Task Manager, that my CPU usage was at 100%. All the time. Even when idle. In fact, resource monitor...
I have 4gb ddr3 memory . Ive checked the new pretty task manager from Win8 and I saw upp to 30% memory usage without runing any app besides task manager ofc. I want to ask if is this normal ? Ive took some screenshots for most of the entire taks manager window showing apps , background...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook