Windows 8 and 8.1 Forums


High disk and CPU usage after upgrade.

  1. #1


    Posts : 5
    Windows 8

    High disk and CPU usage after upgrade.


    Hey Guys, this is my first post here.

    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.

    Any help is greatly appreciated guys, thanks in advance.

      My System SpecsSystem Spec

  2. #2


    United States
    Posts : 3,093
    Windows 8.1 Pro 64-bit


    How long since you upgraded? There is a lot of indexing and optimization that goes on after upgrade. Will be a lot of background activity for awhile.

    And welcome!
      My System SpecsSystem Spec

  3. #3


    Posts : 5
    Windows 8


    Thanks for the quick reply. I upgraded about 5 hours before starting this thread. Is it better to do a clean install? Or is it okay to upgrade?
      My System SpecsSystem Spec

  4. #4


    Posts : 5
    Windows 8


    My disk and CPU and CPU are still under high usage. Its been over 24 hours now, surely all the optimization etc should be done?Click image for larger version
      My System SpecsSystem Spec

  5. #5


    United States
    Posts : 3,093
    Windows 8.1 Pro 64-bit


    That pic is not much help. doesn't show what is using the bulk of the 31% CPU usage. Try posting one that shows what is using the most. Is it Indexing Service?
      My System SpecsSystem Spec

  6. #6


    Posts : 1,875
    Windows 10 Pro Prieview x64


    Please click on the details tab and then on CPU to sort by CPU descending so we can see what is happening.

    Like this....
    Attached Thumbnails Attached Thumbnails Capture.PNG  
      My System SpecsSystem Spec

  7. #7


    Posts : 1,875
    Windows 10 Pro Prieview x64


    Quote Originally Posted by popeye View Post
    That pic is not much help. doesn't show what is using the bulk of the 31% CPU usage. Try posting one that shows what is using the most. Is it Indexing Service?
    snap
      My System SpecsSystem Spec

  8. #8


    Posts : 5
    Windows 8


    It appears to have settled for the moment. If i catch in misbehaving again I'll upload another screenshot.
      My System SpecsSystem Spec

  9. #9


    Posts : 5
    Windows 8


    The CPU usage has remained nice and calm for the last couple of hours but the hard drive is going crazy. The usage is between 60 to 100 %
      My System SpecsSystem Spec

  10. #10


    Posts : 1,875
    Windows 10 Pro Prieview x64


    Can you upload a picture like this sorted by disk
    Attached Thumbnails Attached Thumbnails Capture.PNG  
      My System SpecsSystem Spec

Page 1 of 2 12 LastLast
High disk and CPU usage after upgrade.
Related Threads
Of late, my system is quite unresponsive showed my Disk Usage is always high with System at 0.1 MB/s. Any ideas? I have no idea what troubleshooting to perform. Please help.
High idle disk and cpu usage in General Support
Hello, I've had this problem for a while. After I stop using my computer, at the 4th minute mark of being idle something sets off. I always notice it when I work next to it because the vents rev up, it becomes loud, which means more wear and tear, etc. So first things first, open up the...
Need Help With High Disk Usage! Windows 8 in Performance & Maintenance
Hi, I am playing a game getting great FPS Then it just quits.. I checked the disk usage and it's at 100%! What should I do? I am only playing that one game and nothing else! I have 8 gigabytes of ram.. PLEASE HELP ME!
Solved High Disk usage (98/99%) ONLY on startup in Performance & Maintenance
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...
High disk usage and cpu in Performance & Maintenance
Hi, sorry about my english first. I bought new lenovo ideapad Z400 touch 2 month ago with win8. last week i upgraded to win 8.1 and recover back to win 8 , since then i have some problems. When I have the Task Manager open, I notice the disk usage climbing to 50, 75, 100 also the CPU , even...
Windows 8 High usage CPU/Memory and disk in Performance & Maintenance
i have high usage on my laptop lenovo g580 using windows 8. check task manager and i see cpu memory and disk fluxuating up and down to 3% can go up to 100 at times. when i open google chrome. watch video or play games. i hear my fan turn on and i think my hardrive and i check task manager and i see...
Very high disk usage [Windows 8 Pro 64-bit] in Performance & Maintenance
Hello, Over the past couple of weeks I have been getting high disk usage on my computer, causing it to run extremely slowly. Is there any way to fix this issue? Just after I took the attached screenshot, my System went down to around 6MB/s and the "Service Host: Local System (Network...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook