How to Fix Lag Spikes on Windows 7

Written by dave wilson
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How to Fix Lag Spikes on Windows 7
Network performance issues can place you at a disadvantage when playing online computer games. ( Images)

Periodic computer network delays or "lag spikes," have little to no impact on Web browsing and e-mail performance, but can ruin the delivery of video game content by causing video artefacts and even complete disconnection. Microsoft Windows 7 computer users sometimes experience lag spikes when playing online video games. Change the Windows 7 MMCSS, or Multimedia Class Schedule Service, configuration to fix lag spike issues with online games.

Skill level:
Moderately Easy


  1. 1

    Click the "Start" button on the Windows 7 taskbar and click the "Search" box. Type "regedit" in the "Search" box and tap the "Enter" key.

  2. 2

    Navigate to the "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile" directory in the "Registry Editor" window that appears.

  3. 3

    Double-click on the "NetworkThrottlingIndex" key. Type "FFFFFFFF" into the "Value data" field of the window that appears.

  4. 4

    Click the "OK" button. Click the "X" located in the upper-right corner of the "Registry Editor" window to close the window. Reboot the computer.

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