System USB not recognized

Original title: How can I fix an unrecognized USB?

How can I fix an unrecognized usb system

Hello

Check the configuration/settings (BIOS/CMOS) often F2 when you start - make sure that USB is enabled.

If a PC and if necessary the embedded USB can be disabled and a USB card can be used only
is not expensive. For a laptop, using a real computer shop (no leeks and glances at a Best Buy
or other stores) or system manufacturer support.

------------------

Follow these steps to remove corruption and missing/damaged file system repair or replacement.

Run DiskCleanup - start - all programs - Accessories - System Tools - Disk Cleanup

Start - type in the search box - find command top - RIGHT CLICK – RUN AS ADMIN

sfc/scannow

How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
generates in Windows Vista cbs.log
http://support.Microsoft.com/kb/928228

Then, run checkdisk - schedule it to run at next boot, then apply OK your way out, then restart.

How to run the check disk at startup in Vista
http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.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 Manager and UNINSTALL
all except the category itself - REBOOT - it refreshes the drive and battery USB

This KB shows XP how to and the method of Vista is identical
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, thus
as all USB devices that you previously used. Run Options and check the 1st three choices to see to it there
Is there.

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.

Tags: Windows

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