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  1.    28 May 2016 #31
    Join Date : Apr 2016
    Posts : 15
    Windows 10

    Well...that's a simple solution which does not work for me.
      My System SpecsSystem Spec

  2.    28 May 2016 #32
    Join Date : Jan 2015
    UK, Midlands
    Posts : 5,833
    Win 10 Pro (1607)

    Please feel free to search the forum using the white box at the top yourself. You already have my collection from posts I've read. You will get many results simply by searching for

    Good luck!
      My System SpecsSystem Spec

  3.    02 Jul 2016 #33
    Join Date : Jul 2016
    Posts : 1
    Win 10 Pro

    Quote Originally Posted by dalchina View Post
    Hi, in the attachment I posted, you will see this:
    PC Lagging very much usually when i make high network traffic
    For me it was BitDefender's port scanning protection feature, once I'd disabled that problems were gone.Try this: open BitDefender, go to Modules (in the bottom) > Firewall and there disable Block port scans in the network and restart LatencyMon to see if it worked, changes should be immediate.

    Problem with compressed memory process
    USBPort.sys was the top offender in the LatencyMon report
    I can confirm that Bitdefender Total Security 2016 is the culprit causing this problem on my system. After disabling the Firewall the CPU load went down immediately.

    This may give you a clue.. but it may be sthg else in your case.
    Try disabling your firewall?

    This is useful (note- Win 7, same issue)
    Usbport.sys causes high DPC over time. - Page 2 - Windows 7 Help Forums
    - discusses interrupts, mentions WLAN (sometimes implicated)...

    This has worked for me.. I started having these problems on my old laptop in March, so in April I bought a brand new Asus Zenbook i7 laptop and it started having the same problems.. Did many searches across the net and found this solution that worked.

    I wanted to monitor it before I actually confimed it.. It's been a couple of months now and the issue has not come back since I disabled Block port scans on all my machines.

    Cheers dalchina!!!!

      My System SpecsSystem Spec

  4.    06 Sep 2016 #34
    Join Date : Sep 2016
    Posts : 1
    Windows 10

    I found this thread on Google and wanted to input what solved my problem. I had the same exact issue, I got crackling and popping on both my Sound Blaster Z and my onboard Realtek. I already had my PC on high performance so that didn't solve the issue. I ended up disabled Intel SpeedStep in the motherboard. Basically from what I understand it makes the processor try to save power and clocks it down. I turned this feature off and so far it has been perfect!
      My System SpecsSystem Spec

  5.    4 Weeks Ago #35
    Join Date : Sep 2016
    Posts : 1

    New FIX!

    Not sure why, but it works. Open the Realtek HD Audio Manager, the orange speaker icon in your icons on the right side of the task bar. Go to whatever output your currently using for sound. Go to the Default Format tab, all i had to do was change the Dafult Format to something other than the highest setting of 24 bit, 192,000 Hz. Simple as that for me. Hope this works for others!
      My System SpecsSystem Spec

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