1.    23 Feb 2016 #1
    Join Date : Feb 2016
    Posts : 6
    Windows 10

    SSD processed 100%


    Hi guys,

    Quite often my C: drive is used 100% blocking the system for tens of seconds up to few minutes.
    Any idea what could cause this?

    I've tried turning off the antivirus, firefox... same thing.

    Thanks!

    Click image for larger version. 

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  2.    24 Feb 2016 #2
    Join Date : Nov 2015
    Posts : 2,961
    64bit Win 10 Pro ver 1709 Build 16299.125

    I would look into the 100% disk activity a little more and try and find what is using the disk. In Task Manager on the process tab you can view the entries in sort order according to disk activity with highest at the top. This view will tell you what is causing the read/write activity as you can see from mine below:

    Attachment 66022
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  3.    24 Feb 2016 #3
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,129
    Win 10 Pro (1703)

    Hi, similar symptom reported here:
    Random spikes of 100% disk activity on system drive. - Windows 10 Forums

    Please also see comments here (but noted you have no excessive RAM usage):
    Disk and Memory usage spikes in windows 10 - Windows 10 Forums
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  4.    24 Feb 2016 #4
    Join Date : Feb 2016
    Posts : 6
    Windows 10
    Thread Starter

    Quote Originally Posted by philc43 View Post
    I would look into the 100% disk activity a little more and try and find what is using the disk.
    Ye-ye, but you see... when that process, if any, is overusing the drive, Windows freeze. So i can not see what happens there.
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  5.    24 Feb 2016 #5
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,129
    Win 10 Pro (1703)

    Hi, having read a few reports found with a search on "100% disk activity, low cpu use" - from Win 8 onwards, I suggest:

    a. disable readyboost if in use
    b. disable defragmentation
    c. try changing the power plan from balanced to high performance
    d. if you use Intel(R) Rapid Storage Technology try updating it- see:
    100% Disk Usage - Page 4
    e. Windows Defender may be active whilst disk use is high.
    f. "I had this issue and it seems some others encountered the bug. What fixed it for me is going to settings, system, notifications, and turning off "show me tips about Windows." I believe that was the one causing problems, though I turned all of them off besides the app notifications. System processes went back down after a restart and haven't spiked since."

    These are things people have reported have had an effect. However, this doesn't necessarily identify an exact cause, so is unsatisfactory.

    Analysis: run a capture using Sysinternals Procmon.
    I suggest you take the time to use the filter to filter out all background tasks when idle, so then the capture may show less extraneous info.
    Or you could set up the capture to only include disk read/write ...
    Put another way, there will be LOTS recorded if you don't use a filter... on the other hand, if you get a prolonged burst of one kind of activity as you may, and you know when to look, that might be easy to find.

    (Presumably your SSD is configured to use AHCI not IDE)

    Another think you might try is to download and install ProcessTamer (free).
    That may give you sthg to work with..
    Last edited by dalchina; 25 Feb 2016 at 08:41.
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  6.    25 Feb 2016 #6
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,129
    Win 10 Pro (1703)

    Try this:
    Solution

    “What fixed it for me was going to
    Settings, System, Notifications,
    and turning off "Show me tips about Windows."

    I believe that was the one causing problems, though I turned all of them off besides the app notifications. System processes went back down after a restart and haven't spiked since.”
    From

    https://www.tenforums.com/performance-maintenance/41836-system-compressed-memory-slowing-down-disk-operation.html
    Symptoms:

    System and compressed memory slowing down disk operation

    System and compressed memory process was doing a lot of read and write on the disk.

    I was told to disable and stop running the Windows Services called "Superfetch" and "Windows Search" while it seems to have worked perfectly for many, it hasn't for me. I still have 100% disk usage and a very loud constant fan.

    Windows 10 high Disk usage (100%) I've seen a thread here explaining how to fix it but I seem to have lost it... : techsupport
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  7.    27 Feb 2016 #7
    Join Date : Feb 2016
    Posts : 6
    Windows 10
    Thread Starter
      My ComputerSystem Spec

 

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