How to Fix USB Ports Not Working on Windows 7

Camilla Mo, in Common error

If one of your USB devices isn’t working on Windows 7, whether it’s a USB keyboard, pen drive, printer or some other USB device altogether, this guide should resolve your problem.

Note that there are 5 possible methods here. You may not have to try them all. Just start at the top of the list and work your way down.

Method 1: Hold down power button
Method 2: Check your power supply
Method 3: Check your power management settings
Method 4: Check your device drivers

 

Method 1: Hold down the power button

The easiest way that may resolve the problem is hold down the power button for 30 seconds or so. This will discharge the capacitor. After that, reboot PC and check to see if the problem is resolved.


Method 2: Check your power supply (laptop only)

Power supply powers most USB devices. If, for some reason, your power supply is not able to provide adequate power to all the USB devices, they may stop working. Sometimes, this can be fixed quite simply:

1) Unplug the power supply and charger plug from your laptop

2) Restart your laptop

3) Connect your USB device to the PC again

4) Plug the power supply back in

IMPORTANT: You’ll need to use a keyboard or a mouse to try any of below solutions. . If your usb keyboard or mouse stops working, use a PS2 keyboard instead.

Method 3: Check your power management settings

In order to save power, by default, Windows swtiches your USB controllers off when they’re not in use, and switches back on again when they’re needed. Unfortunately, sometimes this approach doesn’t work as intended, and Windows fails to switch your USB controllers on again.controller or the devices.

To rule this out as the cause of your USB woes, just stop Windows from ‘managing’ power to your USB controllers and devices:

1) Open Device Manager.

2) Expand the Universal Serial Bus controllers branch.



3) Double-click the first USB Root Hub device in the list, and click the
Power Management tab. (If you see only one USB Root Hub device, that’s fine)

4) Un-check the Allow the computer to turn off this device to save power checkbox, and click  OK.



5) Repeat steps 3-4 for each USB Root Hub device in your list of Universal Serial Bus controllers

Method 4: Check your device drivers

Your USB ports not working problem is probably being caused by driver issues. The steps above may resolve it, but if they don’t, or you’re not confident playing around with drivers manually, you can do it automatically with Driver Easy.

Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about making a mistake when installing.

You can update your drivers automatically with either the FREE or the Pro version of Driver Easy. But with the Pro version it takes just 2 clicks (and you get full support and a 30-day money back guarantee):

1) Download and install Driver Easy.

2) Run Driver Easy and click Scan Now button. Driver Easy will then scan your computer and detect any problem drivers.

3) Click the Update button next to a flagged USB driver to automatically download and install the correct version of this driver (you can do this with the FREE version). Or click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system (this requires the Pro version – you’ll be prompted to upgrade when you click Update All).

Here take Intel USB 3.0 driverf for example:

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  • j drama

    Power saving/management solution worked for me too. Unbelievable……

  • paulosas

    all my usb port not working on my windows 7 tried several solution, didnt work. should i change my window

  • Jorge Ruiz De Somocurcio

    My “USB ROOT HUB”s were disabled …. THANKS for making me notice it!!

  • cletus

    have try all this,still not working…..PLEASE I NEED HELP!!

  • Autrach Sejanoz

    The Power Management tip worked for me! Many thanks!

  • A Pradeep Sai Siva

    Thanks for the Help

  • sha

    Thank you..The power button did the Work

  • JB

    The power option worked

  • Dragan

    Hi, it is very helpfull.Thanks!

  • Jeff

    Amazing. Tried a lot of other things. Your step one – holding the power button down – worked perfectly. Thank you.

  • alex

    The power button did the trick, thank you!

  • Phil

    Very helpful, turning off the power manager did the trick. Shoul I leave this off?

  • pradhyuman

    There are another problem…
    problem is only 2.0 usb or chip loader work on port new pen drive doesn’t work only new…

  • Loganathan

    Thanks.. Very useful

  • JITENDRA SINGH

    if your all usb port stopped working use these steps
    go to start button->all programs->accessories->system tools->system restore.
    note-restore the system in any back date. please move the c drive data/desktop data into any other drive