1.    19 Dec 2015 #1
    Join Date : Dec 2015
    Posts : 2
    Windows 10 Professional 64-bit

    System process reading disk 100% and making the system very slow

    I found out that the hard disk is 100% utilized. In Task Manager, the process that utilizes the disk the most is ESET Service. If I open Resource Monitor there are many instances of the System process that are reading the disk, not writing it. I have two partitions on my disk - one for the system and the other one for data; the extensive disk reading is done for Pictures (I assigned a folder with pictures, about 140 GB in size, to the system My Pictures folder) on the data partition.

    I am not running any tests in the ESET Endpoint Antivirus software and it seems to me that the high disk activity starts when I do not do anything and just e.g. browse Internet or look at something. So, it feels like Windows is doing something, but I have no idea what it is and how I can influence it. If it were disk optimizations I think I should see also disk writes, not only reads. Could it be that Windows is doing something automatic with Pictures, Documents, etc.?

    I wonder what is going on - I dislike the fact that something is going on with the hard disk, making is 100% utilized and making other work very slow and non-responsive.
      My System SpecsSystem Spec

  2.    21 Dec 2015 #2
    Join Date : Dec 2015
    Posts : 2
    Windows 10 Professional 64-bit

    I think I found out what was going on. I accidentally opened the Windows Store app named Photos and the high disk activity has been a problem since that time. To stop the activity, I had to remove the folder My Pictures from Sources in the Photos app's settings. I think the Photos app was somehow cataloguing all pictures, which I do not need or want.
      My System SpecsSystem Spec


Similar Threads
Thread Forum
Solved Is this normal? System and compressed memory process ALWAYS at 20% cpu
I recently did a clean install of win10 on my laptop. Ever since then the process called "System memory and compressed memory" has been running at around 15-25% cpu load constantly. It never stops, even when letting the computer idle for hours. The...
Performance & Maintenance
100% DISK usage causing slow system startup
For the last week or so my system has been very slow to startup, and during this time the disk shows at 100% usage. It takes at least 5-10 minutes until everything has loaded and disk usage returns to normal and the system is usable. I have...
Performance & Maintenance
System process - high CPU usage after some time
Hi everyone, in Task Manager, the "System" sometimes starts eating 14~20% CPU and that persists until a reboot. "System interrupts" (which is a pseudo process?) seems to do the same. It doesn't happen from boot, and I don't know what triggers...
Performance & Maintenance
Question about the System process
I see a lot people talking about memory leaks with this, mine never goes that high except when I game it'll jump up higher than the game itself sometimes. Just curious is this the case for everyone?
Windows 10 new upgrade, system process using a lot of RAM
I seem to have an issue with one of my system processes using up an inordinate amount of RAM. It isn't causing a lot of issues right now, but it definitely bogs things down here and there. Pictures are of my task manager window on relevant tabs. ...
General Support
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 22:24.
Find Us
Twitter Facebook Google+

Windows 10 Forums