Windows recognizes not all new devices...
When I plug in a new device to my computer it not to be recognized, but the devices that have been recognized before work normally.
Once I plug the new device, a message indicates that windows could not find the device driver appears immediately.when I open the Device Manager, that they appear as unrecognized devices. The same features are functioning normally to another laptop.
of course, I tried to change the USB hub and restarted windows and then I ran a full system scan, then turned off the firewall and antivirus that I also ran that the laptop in safe mode, but the issue is not resolved.
I have another problem, but don't know if it is related to this problem is that new updates are not installed, so when I restart the computer, it tries to install downloads happening to 30% then stops and comes back.
Hello
References to Vista also apply to Windows 7.
Follow these steps to remove corruption and missing/damaged file system repair or replacement.
Start - type in the search box - find command top - RIGHT CLICK – RUN AS ADMIN
sfc/scannow
How to fix the system files of Windows 7 with the System File Checker
http://www.SevenForums.com/tutorials/1538-SFC-SCANNOW-Command-System-File-Checker.html
Then run checkdisk (chkdsk).
How to run check disk in Windows 7
http://www.SevenForums.com/tutorials/433-disk-check.html
-----------------------------------------------
Then lets refresh the USB stack
Control the click Control Panel - Device Manager - no matter where in the box of white/white - then the VIEW - see the
Devices disabled - look around (with the exception of USB controllers) for your devices (can have
zero or more than one) and top - right click UNINSTALL.
Control Panel right CLICK on EVERYTHING - Serial USB controllers - device configuration-manager and
UNINSTALL all but the category itself - REBOOT - it refreshes the driver and battery USB
This KB shows XP how to and methods of Vista and Windows 7 are the same
http://support.Microsoft.com/kb/310575
This is a utility to help you, but do 1 above.
USBDeview is a small utility that lists all USB devices currently connected to your computer.
as well as all USB devices that you previously used. Run Options and tick three 1
are there choices to see if any.
http://www.NirSoft.NET/utils/usb_devices_view.html
You must remove all instances of the devices and restart.
----------------------------------------------
If necessary try these two:
Tips for solving problems of USB devices - and a Mr Fixit
http://windowshelp.Microsoft.com/Windows/en-us/help/c39bd203-f729-47a4-8351-83291e13c8a81033.mspx#EGB
Hardware devices not detected or not working - Mr. Fixit
http://support.Microsoft.com/GP/hardware_device_problems
I hope this helps.
Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle="" -="" mark="" twain="" said="" it="">->
Tags: Windows
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