You attach a USB-based device to a computer that is running Windows XP. Then, you try to scan for hardware devices. However, the computer does not detect the attached device, and you do not see the device in the My Computer folder.
You may experience this problem when you are using one or more of the following devices:
* USB flash drive
* Apple iPod
* External hard disk drive
Additionally, you may not see the iPod in the iTunes application.This problem can occur if there are corrupted or incorrect keys in the registry.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.
To fix this problem automatically, click the Fix this problem.
Then click Run in the File Download dialog box, and follow the steps in this wizard.
To resolve this problem, delete the UpperFilters registry value and the LowerFilters registry value. These values may cause access problems. To do this, follow these steps:
Click Start, click Run, type regedit , and then click OK.
Locate and then click the UpperFilters registry value. This value is located in the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E980-E325-11CE-BFC1-08002BE10318}
On the Edit menu, click Delete, and then click OK.
Locate and then click the LowerFilters registry value. This value is located in the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E967-E325-11CE-BFC1-08002BE10318}
On the Edit menu, click Delete, and then click OK.
Exit Registry Editor.
Restart the computer.
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