Solve : USB Device not recognized problem in Windows 7 , XP, Vista

After reading this post you will be able to solve / fix “ USB Device not recognized “ error message that is displayed on your Windows Computer system. Windows 7 & VISTA Hotfix link inside. Microsoft FIXIT for Windows XP ( Link Inside )

There are quite a few causes for this problem to occur. Following are some of the resolutions that we have come across while troubleshooting Windows over time. These solutions are applicable on Windows 7, XP & Vista.

Uninstall & Reinstall USB Root Hub

  • Go to device manager ( Control Panel ), Windows 7 users can type device manager in the start menu search box & open the proper program from the results displayed.


  • Expand Universal Serial Bus controller options
  • Right click on USB root hub ( one at a time ) & click uninstall.
  • Remember if you are using a USB keyboard/mouse or any devices that use USB interface might stop working.
  • Restart your computer.

If the problem persists

  • Turn off Power Management in Windows
  • Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens.
  • Expand Universal Serial Bus controllers.
  • Right-click a USB Root Hub in the list, and then click Properties. The USB Root Hub Properties dialog box is displayed.
  • Click the Power Management tab.
  • Click to clear the Allow the computer to turn off this device to save power check box, and then click OK.
  • Repeat steps with all USB Root hubs available.


If the problem persists

  • Go to, your computer/motherboard manufacturer’s support website & from there download and install latest chipset drivers from there.
  • Install these drivers & restart your computer

If the problem persists

  • Go to, Windows Update ( Control Panel )
  • Update your Windows with all recommended updates & check if there are any hardware device drivers within optional updates, Install them as well.

Windows 7 & Vista Users HOTFIX


FIXIT for Windows XP users


The Last Step for Laptops ( All Portable Devices with removable battery/ Desktops


  • Turn off your Computer
  • Take the battery out carefully, refer the documentation that came with your computer.
  • Press & hold the power button for a few seconds.
  • Put the battery back into the compartment
  • Start the computer and check


  • Turn off your computer
  • Pull out the power cord from the mains or backup unit ( UPS )
  • Maintain no power policy for 2 minutes
  • Restore power to the computer unit
  • Start your computer to check.