usb device not recognised

Hi,

Is the laptop's USB port(s) indicating that it is supplying power to the device e.g. plug in a phone or mouse and check for charging or laser light?

If not, go to Device Manager - Universal Serial Bus Controllers - click on the > symbol to the left of the category to expand the list - right click on USB Root Hub - Properties - Power Management - and check if the checkbox next to "Allow the computer to turn off this device to save power" in unchecked.

If not, uncheck it, click Save and restart the laptop and check if the USB port now works OK.

Do this for all the USB Root Hub entries shown in Device Manager.

To get to Device manager in Win 10 press the Win Key and the x key (both together) and click on the Device manager link.

Well you can try the following

• Change USB Root Hub Settings.
• Update USB Driver.
• Check And Change Ports.
• Change USB Selective Suspended Settings.
• Format Your Drive.

And one more thing you can try using a good driver updater software like Advanced driver updater is a good driver updater software.

2 Methods to fix "USB Device not recognized" error-

Resolution 1 - Uninstall and then reconnect the external hard drive

This method resolves issues where the currently loaded USB driver has become unstable or corrupt.

Select Start, type Device Manager in the Search box.

Select Device Manager from the returned list.

Select Disk Drives from the list of hardware.

Press and hold (or right-click) the USB external hard drive with the issue, and select Uninstall.

After the hard drive is uninstalled, unplug the USB cable.

Wait for 1 minute and then reconnect the USB cable. The driver should automatically load.

Check for the USB drive in Windows Explorer.

Resolution 2 - Install hotfixes that resolve issues that may exist on Windows 7

The hotfixes in this method can resolve a known conflict with a USB external hard drive and Windows.

Go to KB976972 You encounter problems when you move data over USB from a Windows 7-based computer that has an NVIDIA USB EHCI chipset and at least 4 GB of RAM.

Under Update information, select Download the update package now that corresponds with your version of Windows 7.

If you're unsure of which version of Windows 7 you are running, select the Start button, press and hold (or right-click) Computer > Properties.

If 64-bit Operating System is listed next to System type, you're running the 64-bit version of Windows 7.

If 32-bit Operating System is listed next to System type, you're running the 32-bit (x86) version of Windows 7.

Select Continue. If a User Account Control permission prompt occurs, select Yes.

Select Download > Open.

The download should start in 30 seconds. If it does not, select Start Download > Open.

Follow the onscreen instructions to complete the download and installation.

Go to KB974476 The computer stops responding when an USB device resumes from the USB Selective Suspend state in Windows 7.

Select View and request hotfix downloads > Select hotfix.

If prompted, review the license agreement. If you agree to the terms, select I Accept.

Check the box next to your version of Windows 7, then enter your email in the boxes below.

Enter the word verification, then select Request hotfix.

Check your email. You will soon see an email from Microsoft with a download link for the hotfix. Select the link and follow the onscreen instructions to download and install the hotfix.

Restart your computer.

This may help you,

Rachel Gomez