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Scan for recent hardware changes,Scanning might not find new devices attached to your computer and install them. in windows 7 home premium

i have windows 7 home premium installed on Toshiba p755 lap top and i can use only one usb port
i used the windows help and i got " Scan for recent hardware changes,Scanning might not find new devices attached to your computer and install them."
i need help so i can use the 4 usb port
thanks & regards
Answer
Answer

Hi George,

 

 

1.      Does a hardware device connect in other computers?

2.      Were there any recent changes made on the computer prior to the issue?

 

 

Please follow the links and steps: 

 

Method 1: Run the Hardware and devices troubleshooter.

 

http://windows.microsoft.com/en-us/windows7/Open-the-Hardware-and-Devices-troubleshooter

 

Alternatively you can try the fix it mentioned below and check.

 

http://support.microsoft.com/mats/hardware_device_problems/en-us

 

For more information, refer the link:

 

http://windows.microsoft.com/en-US/windows-vista/Tips-for-solving-problems-with-USB-devices

 

Note: It applies to Windows 7 as well.

 

Method 2:

 

Use Device Manager to scan for hardware changes

Use Device Manager to scan for hardware changes. After your computer scans for hardware changes, it might recognize the USB device that is connected to the USB port so that you can use the device.

To scan for hardware changes, follow these steps:

  1. Click Start, and type devmgmt.msc in the Start Search box and hit enter.
  2. Device Manager opens.
  3. In Device Manager, click your computer so that it is highlighted.
  4. Click Action, and then click Scan for hardware changes.
  5. Check the USB device to see whether it is working.

 

Method 3:

 

Uninstall and reinstall USB drivers.

You may check after uninstalling and reinstalling the USB drivers if you are able to connect. You may disconnect all USB devices and then perform the following steps:

 

a.       Click Start, and then click Control Panel.

b.      Click System and Maintenance, click System, and then click Device Manager.

Note: If Control Panel is in Classic View, double-click System, and then click Device Manager.

If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

c.       In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the Host Controller, click "Uninstall" and click "OK".
Check if at all there is an exclamation mark along the driver, it suggests issues with the driver installed.

d.      Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".

 

Then, restart your computer and Windows 7 will reinstall all USB controllers automatically.

 

Note:  Connect the USB devices to the Computer only after the conflict drivers are uninstalled and once the Computer is restarted.

 

If you still face the same issue then you may check for the updated USB device drivers using windows update.


http://windows.microsoft.com/en-us/windows7/Update-a-driver-for-hardware-that-isnt-working-properly

 

Hope this information is helpful.

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Question Info


Last updated July 1, 2020 Views 46,212 Applies to: