High CPU Usage When Leave Computer Idle For Some Time

Dec 8, 2012

I've noticed that when I leave my pc for some time and the screen savers come on, then the screens go blank (my machine doesn't sleep or hibernate) when I use the pc again I can see that during the time the monitors had turned off, the CPU usage was at or above 50% ? When I use the computer after that, watching movies, photoshop etc the cpu usage is much less than that!

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High Memory Usage While Idle?

Apr 7, 2013

I just bought a brand new Lenovo U310 Touch and so far I absolutely love it. The only thing I noticed that struck me as odd is that when I look in Task Manager it shows that I am using around 60% of my available memory, but there are no processes taking up anywhere near that much. I also have a desktop I built and its memory usage is nominal when idle so I know this isn't a "standard feature" or anything.

EDIT (5/4/13) - Finally figured it out, it was the ExpressCache program, used a couple tutorials to isolate where the memory leak was and from there I found it was in the running files of ExpressCache, I just went to Uninstall Programs, hit "Repair" on the program and now everything is all nice and happy, no more memory leak.

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High CPU Usage After 4 Minutes Of Idle - Windows 8 Notebook

Jun 15, 2013

Windows 8, after 4 minutes of idle my notebook i get high cpu usage , i tried understand why occurs this problem with KernRate and get such trace log.

ProfileTime 86659 hits, 10000 events per hit --------
Module Hits msec %Total Events/Sec
RtlTraceDatabaseCreate 65847 314799 75 % 2091715
KeQueryInterruptTimePrecise 12833 314799 14 % 407656
RtlCompareMemoryUlong 654 314799 0 % 20775

[Code] ......

Why occurs high cpu usage?

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I'm setting up a new laptop running Windows 8.1. I keep finding the Windows Media Network Sharing Service keeps starting up when the PC is otherwise idle and running at 90% + CPU load for long periods. There is no demand for media streaming when the process is running.

What is this process for? Can I disable it or reconfigure it to reduce the CPU load?

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Jul 2, 2013

After around 5 minutes of my system sitting idle, MsMpEng.exe kicks in running about 50% CPU and keeps running until I start using my laptop again. How to stop it doing it.

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It seems as if my computer is using way too much RAM for some reason. I currently have 6GB of RAM installed. As soon as I start my computer up, I'm greeted with this warning:

So I decided to open up task manager and see exactly how much RAM I'm really using:

No process is using up any amount of RAM to come close the above number. The most RAM using is 70mb or so from Google Chrome while typing this post. Clicking on the performance tab of task manager gives me this information:

I haven't downloaded anything recently. I had this exact problem a few weeks ago and a system restore fixed it but I'm not wanting to wait on the computer to restore again or for this problem to just come back again. I'm running Windows 8 on a Toshiba Satellite L875D-S7332.

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Mar 26, 2014

Ocassionally my computer will become so slow it's almost unresponsive, when I check task manager it says 7.2 of 7.9GB of ram is in use. Even rebooting it, it will come back with high memory usage, sometimes rebooting it, it goes back to normal

Most of the time it is normal and fast, I can have Chrome open and have 10 pages open and usage is about 1GB, but what causes this to happen occasionally when I'm just surfing the internet?

I have Win 8, Intel 4670K, Z87, 8GB DDR1333.

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Apr 7, 2014

I'm using the same programs as my old system which also had the same amount of ram (2x4GB 1600MHZ) and the usage was very low.

This PC was only built 4 days ago the current ram is 8GB (2x4GB) Corsair Vengeance Pro, 2133MHz, CAS 11-11-11-30, 1.5V

The first two days that the PC was built I noticed the idle usage at 88% and if i ran a program it would hit 100% and pretty much freeze the PC so it's not an error in the display.

Mobo is MSI Z87-GD65 and I'm running Windows 8.1 with no updates.

Probably not anything to do with it, but i'm running beta amd video drivers and it's showing my card as 5GB, I'm planning to uninstall beta drivers and run updates. Just wanted to know of others opinions.

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Jan 3, 2014

I bought this Vaio with Core i5-3210M, 4Gb Ram, Windows 8 64 bit. I had really high hopes for it, coming from an i3. For the first few weeks it worked fine, but then it started to freeze while watching movies. Then it started happening all the time, and the cooling fan became consistently noisy for working at full capacity.

I was used to opening task manager on older systems when this happened to see if there was a non-responding program and force it closed, so I noticed Task Manager offers some more features in Win 8. Here, I see that CPU usage is high, staying always around 70% and from time to time reaching 100. At this moment, the process taking the biggest slice is called VCS System Tray with 58%.

What's perhaps more concerning, is that Disk usage is almost constantly on 100%. And by this I mean it reaches 100 and stays there for long periods of time, perhaps up to 20 minutes, then it falls down a few seconds and up again to 100. During this time the computer is excruciatingly painful to use. To even open a program takes forever. When this happens, it seems that Chrome is at the top of the list of processes with most disk usage, with about 1-2Mbps, but this sometimes changes and the list can be led by System, Utorrent, Octoshape, VCS System Tray, Communications Service...I think it's not related to any process by itself, but its nearly ALWAYS at 100%.

Finally, memory usage is also pretty high at 78%, but I guess this may be because 4Gb is not too much for this computer. I'm hoping to upgrade to 8 soon. Out of the 10 processes consuming most memory, 9 is Google Chrome (how's that even possible?).

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when i leave my system in idle for an hour or two, it reboots without any BSOD, or any error messages. My rig is 5 year-old, and always worked perfectly with Windows 7, without any strange issues.

When i'm working, Win 8.1 works absolutely perfect for long long hours.. rendering video, playing games etc.. i never found a BSOD or random reboot.I did the following to try to solve this problem, without success:

- Changing my PSU.

- Changing the Win 8 energy plan to Maximum Performance (hard disks never turn off)

- Memtest for 16+ hours, without any error.

My guess is there are some Windows 8.1 feature that doesn't fit well with my mobo, but i can't find it. I have also the same version of Win 8.1 installed in another older rig, and works 100% perfect during days (working and idle).This is my problematic rig:

Gigabyte P55-A UD6, BIOS F12c Beta (the last available from Gigabyte)
G-Skill Ripjaws DDR3 2000 8Gb (2x4Gb)
Intel Core i7 860 Lynnfield
Sapphire Radeon HD 7950 3GB GDDR5
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When I have the Task Manager open, I notice the disk usage climbing to 50, 75, 100 also the CPU , even though there's scarcely any disk activity going on, the laptop's fan is working harder and very noisy , my processor's speed and heat are jumping high without any programs on.

I tried almost anything, checked for viruses, disabled unnecessary startup programs, clean boot, but it still the same.

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Today I upgraded from Windows 7 to Windows 8.1. For some reason, after upgrading, my hard disk usage is always hovering at around 60% usage and my CPU usage is always hovering at around 50%. This is when the PC is idle. When I was using 7, the disk would rarely jump over 30% usage and the CPU would never go above 7% when idle. The sound of the hard disk constantly working away is doing my head in, not to mention it's at around 50 degrees as opposed to 45 degrees previously.

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Is there anyway to disable this? or revert it back to similar what 7 had?

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Basically when I start my laptop everything is good for a while when suddenly the CPU usage goes high because of System Interrupts (~25%) and System (~12%). I have tried using LatencyMon to track down the problem and it used to give me alerting messages but now it gives me messages that are all green and nice ("Your system appears to be handling(...)").

NOTE: My drivers ARE up-to-date, but I am not sure my BIOS is. I don't really know how to update the BIOS though, it's a really weird model I have here, that has become obsolete.

*update1* Upon thinking that it might be the wireless driver or the network driver I disabled both, but it didn't drop the CPU usage

*update2*Now I get disconnected from the internet randomly... it may be the wi-fi driver after all

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I have tried the fix from this thread, but it only works for a few minutes.

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I'm using Samsung Ultrabook Np-530U4C-S01. Here is tech specs. (using Windows 8, not 7)

[URL]

So when i start my computer it has avg 2.5 GB memory. Here is task manager SS:

high ram usage problem - Imgur

So why is that?

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So I booted up my pc this afternoon, but notice with my monitoring software, my cpu activity was going nuts.

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Over the past couple of weeks I have been getting high disk usage on my computer, causing it to run extremely slowly.

Just after I took the attached screenshot, my System went down to around 6MB/s and the "Service Host: Local System (Network Restricted)" jumped to around 16MB/s Looking in resource monitor the main things causing the high read speed are:

'rundll32.exe' and 'ccsvchst.exe' and one just called 'System'

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I recently installed Windows 8.1 on my Inspiron 7520 and I noticed that during the startup the disk usage is around 98/99% of my Samsung SSD 840 Pro 120gb.

I saw a lot of posts where the users complain that, during this high usage of the disk, apps don't open, the system freezes around 5 minutes and after that, there are random high usages, even on idle. But in my case this high usage lasts only few seconds (around 30s), I can open some apps with no problems and never happens again on idle, only if I restart Explorer.exe. If I restart it, it happens all again.

My question is : Is it normal? The high usage only on startup? My only worry is mess up with my SSD due this usage.

On Performance Monitor, the process which writes a lot is System. I disabled every 3rd party app on startup.

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Lately I have noticed a high disk usage with the computer using task manager. Things that cause this spike is conducting normal operations just as opening an application or the web-browser.

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I would like to know if it is normal for applications such as Chrome to be using the disk space? And if so, what may be causing high disk usage?

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I have recently discovered that my laptop cooler was going crazy and I didn't knew why, then I started Task Manager and there it was "Windows host process (Rundll32) eating 30% of the cpu.

Notebook specs:
Cpu: Intel Core i5 3210m
Ram: 8gb ddr3 1600mhz
OS: Windows 8.1 x64 pro with the latest update

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Jul 21, 2013

My system is quite unresponsive showed my Disk Usage is always high with System at 0.1 MB/s.

What troubleshooting to perform.

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As soon as I start an application (Cadence Allegro PCB Designer 16.5 but I don't think it's relevant) my CPU usage gets to the roof and stays there long after I killed the application and I believe I every associated process. The CPU usage is so high that the battery will be drained after about 45 minutes (It usually last about 3 hours).

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[URL] .....

Log Name: System
Source: Microsoft-Windows-WER-SystemErrorReporting
Date: 11/6/2013 11:13:56 AM
Event ID: 1001
Task Category: None
Level: Error

[Code] ......

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