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How to fix the USB root hub power management issue in Windows 7 - fixedByVonnie

How to fix the USB root hub power management issue in Windows 7

The USB root hub is not a physical device that you plug in a USB peripheral.  The USB root hub is the software driver that lets you connect multiple USB peripherals to your computer.  Most computers have multiple root hubs so you can share the data bus across multiple devices.

Usually one hub is dedicated to a specific USB version to retain backwards compatibility.  For example, USB 2.0 ports are usually supervised by dual controllers. One controller facilitates the faster USB 2.0 data rates while the other one is dedicated to the older, snailish, USB 1.1 standard.

Also, don’t be alarmed if you have more USB root hubs than physical USB ports because a few are probably virtual ports that Window’s needs to be happy.

Today I want to show you how to permanently disable Allow the computer to turn off this device to save power in the Power Management properties of your USB Root Hub.

To see what I’m talking about, click Start and type:

devmgmt.msc

or press the Windows Key + the Pause/Break key on your keyboard.

If you scroll down to Universal Serial Bus controllers and double click one of your USB Root Hubs you’ll see your intractable power option under the Power Management tab.

Windows 7 USB Root Hub Power Management

The problem is that this setting sometimes fails to stick.  In other words, after unchecking the power management option, clicking OK, rebooting and revisiting the Device Manager the silly power management option is checked again!  It’s like it adamantly refuses to accede to your command!

Vexing I know – here’s how to stop the nonsense.

We just need to open your power plan and configure your advanced power settings.

Click the Start button and type

edit power plan

Windows 7 Edit Power Plan

Click Change advanced power settings then scroll down to USB settings and click the little plus next to USB selective suspend setting.

Set both the On battery and Plugged in settings to Disabled then click OK to apply changes.

Windows 7 USB selective suspend setting

That should do the trick for ya.

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  • Bresh

    Hi Vonnie! I stumbled on your blog while trying to fix a recurring “usb not recognized” problem (w/ my iPod, jump drives, etc..) and thought that this post of yours would be the solution to my problem. I haven’t been able to put new songs on my iPod in months because of this. I was able to successfully stop the power management box from being checked (thanks!) but my computer (Windows Vista OS) still does not recognize any usb device I insert, any insight on how to possibly fix this???

  • Joey B

    I found this solution on another forum, it seemed to work for a couple days, but it is happening again and the tabs remain UNCHECKED and the USB selective suspend settings remain DISABLED….Windows (and/or Samsung) you are trying my patience