Windows 8 and 8.1 Forums


High Disk usage (98/99%) ONLY on startup

  1. #1


    Posts : 7
    Windows 8 Pro

    High Disk usage (98/99%) ONLY on startup


    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.

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


    Thanks a lot!
    Last edited by IgorEscodro; 30 Oct 2013 at 16:15.

      My System SpecsSystem Spec

  2. #2


    Is it normal? The answer is no! Have you looked at your event viewer to see what warnings, errors or critical errors you are getting? That might provide you some insight of problems. Also, have you checked Action Center and used troubleshooters available there? Just some suggestions that might help identify. Hope you get it solved....
      My System SpecsSystem Spec

  3. #3


    Posts : 7
    Windows 8 Pro


    Quote Originally Posted by JohnBurns View Post
    Is it normal? The answer is no! Have you looked at your event viewer to see what warnings, errors or critical errors you are getting? That might provide you some insight of problems. Also, have you checked Action Center and used troubleshooters available there? Just some suggestions that might help identify. Hope you get it solved....
    No, I haven't try any of this methods. I will try it now!


    I'm thinking of make a Windows Reset... maybe some drive or app installed is doing it, even doing a clear boot...
    I think it's the best option...
      My System SpecsSystem Spec

  4. #4


    Posts : 7
    Windows 8 Pro


    I downloaded Windows ADK and the issues are Explorer.EXE and System process. I stopped every other service/startup process.


    I tested the Disk usage in other computers and the 97% - 100% is kind of common...


    Anyone else here can test it so we can see if JohnBurns' PC is an exception (LOL)


    Thanks for everything!
      My System SpecsSystem Spec

  5. #5


    Posts : 2,191
    Windows 8.1


    Hello,

    From my perspective, it seems logical that your CPU will exhibit high usage during a boot, and the duration of high usage, will be directly dependent upon the tasks that are required to complete the boot. You can also factor in the CPU processing power, relative to the tasks at hand. So, I don't think there is a "one-shoe fits all" answer here.

    However, the one thing that I did want to respond to is your expressed concern regarding your comment here:

    My only worry is mess up with my SSD due this usage.
    And to that I can only say "what the heck is the benefit of buying a Ferrari that you can't drive?" Moreover, I can tell you that I have a test rig and I have beaten my SSD to death with (literally) hundreds of System Image backups and restorals without issue. So, you can either leave that Ferrari in the garage or just put it in gear and drive it as much as you want. Good luck with your decision in that area.

    my2cents
      My System SpecsSystem Spec

  6. #6


    Posts : 7
    Windows 8 Pro


    Oh, sorry my2cents
    I think its a misunderstood.
    I searched everything about SSDs before buying one and I know the risk which this Ferrari can take. 😉

    My real worry is: if this usage is EXTREMELY UNCOMMON, it can be a problem in SSDs (or HDD, whatever) life time. But, if its common is most of the cases, no problem. Did you get me? 😊

    The worry is about how can this impact over the system, not specified on the SSD.

    Thanks for your help!
      My System SpecsSystem Spec

  7. #7


    One of the reasons W8 boots faster is that it loads as many files and services (or attempts to ) as possible so there's nothing strange there. Depending on the speed of whole system, most programs will load even before the whole boot process is finished especially if they are installed on other HDD. Also some AVs will check all that's loading and even check whole or part of the system and so cause even more work with BOOT drive.
      My System SpecsSystem Spec

  8. #8


    Posts : 7
    Windows 8 Pro


    Thanks for you reply, Mike.
    I also think it is kind of normal during the boot, specially because it does not freeze my computer. I think in order circumstances it would freeze it all.
    When my PC is booting (during this high usage time) I open Eclipse IDE, and start MySQL and Apache in the same time (My default apps ) and they open with no problem.


    By the way, I'm thinking about format it to do some tests...


    Thanks a lot!
      My System SpecsSystem Spec

  9. #9


    Posts : 2,191
    Windows 8.1


    Quote Originally Posted by CountMike View Post
    One of the reasons W8 boots faster is that it loads as many files and services (or attempts to ) as possible so there's nothing strange there. Depending on the speed of whole system, most programs will load even before the whole boot process is finished especially if they are installed on other HDD. Also some AVs will check all that's loading and even check whole or part of the system and so cause even more work with BOOT drive.
    Agreed... You are good to go IMHO.
      My System SpecsSystem Spec

  10. #10


    Don't forget to do "secure Erase" before reinstalling system to be sure there's no residual effects that can screw your testing. I believe there's an utility for your Samsung and if not I know there's one for Evo drives.
      My System SpecsSystem Spec

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