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Windows XP - Constant hard disk activity issue RRS feed

  • Question

  • Recently I observed that all my four hard disks installed in my XP Pro machine show a % idle time physical disk counter between 50-60% all the time, even when the PC is fully idle. I checked the processes running in the background and I can't find nothing causing this constant disk activity.

    When I run XP in safe mode the counter is normal (average 99,60%). I also observed that in normal mode, when I connect a USB stick, the counter is normal (99,5%). After disconnecting the stick drops again to 50-60%.

    I'm getting the information from perfmon.msc and the counter is "Physical Disk" -> "% idle time".

    I also observed that the values of the S.M.A.R.T. attributes 241 & 242 (Total LBA Written & Total LBA Read respectively) from the two installed Seagate disks are growing constantly.

    I'm sure that this is not a hardware problem because in the same PC I have an installation of Windows 7 and when I'm booting to win7 everything is O.K.

    How can I find what is causing this disk activity? I'll be very grateful if anyone can help me.


    Saturday, February 9, 2013 11:37 PM

Answers

  • Check the processes in task manager. Look for process that uses maximum memory, the same app can be causing issue.
    Tuesday, February 12, 2013 3:48 PM
    Moderator

All replies

  • Check the processes in task manager. Look for process that uses maximum memory, the same app can be causing issue.
    Tuesday, February 12, 2013 3:48 PM
    Moderator
  • I already did that with no result. I also used SysInternals Process Monitor, with no success.
    Wednesday, February 13, 2013 9:19 PM