USB port recognizes the devices once they work momentarily.

I have a zune and it has worked well for over a year. Suddenly the usb drivers only recognize the device for about a minute and losing the device when I try to sync saying that it can not recognize the device. How can I get the usb ports to read normally?

Hello

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 the next startup, then apply OK your way out then
turn it back on.

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 Panel right CLICK on EVERYTHING - Serial USB controllers - device configuration-manager and
UNINSTALL all but 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.
as well as all USB devices that you previously used. Run Options and tick the three 1st choice
to see if one is there. Try to remove all instances and restart then plug the drive.
http://www.NirSoft.NET/utils/usb_devices_view.html

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

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 - bicycle - Mark Twain said it is good.

Tags: Windows

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