Consider the following scenario:

• On Windows Vista-based computer, you connect a removable storage device, such as a USB device, to the computer. After you do that, Windows Vista assigns a drive letter to the removable device in the system device context.
• You disconnect the removable device from the computer, and then you map a network drive by using the drive letter that was previously assigned to the removable device.

In this scenario, if you reconnect the removable storage device to the computer, Windows Vista cannot find the device.

Note: If you disconnect the network drive, the drive letter is assigned to the removable storage device, and you can access the device.

After you update a storage device driver on a computer that is running Windows Vista, you may experience one or more of the following symptoms:

• You are prompted to reactivate Windows Vista.
• You experience reduced functionality in some components, such as Windows Media Player or Windows Media Center.

Consider the following scenario:

• You connect a removable storage device to a Windows Vista-based computer.
• This storage device has a DCIM folder in its root directory.
• This storage device has an Autorun.inf file in its root directory.

In this scenario, a Windows Explorer window appears instead of the AutoPlay dialog box. Therefore, you cannot start the program that is configured in the Autorun.inf file.

If this storage device has a DCIM folder in its root directory but does not have an Autorun.inf file in its root directory, options for viewing pictures appear in an AutoRun dialog box. Therefore, you can select the program that you want.

You insert storage media into a removable drive on a Windows Vista-based computer. However, the volume label of the storage media is not updated. Additionally, the AutoPlay dialog box is not displayed.

Note: This problem occurs intermittently.

Consider the following scenario:

• On a Windows Vista-based computer, you are using a removable universal serial bus (USB) storage device such as a Secure Digital (SD) card.
• You click the Safely Remove Hardware icon in the notification area, and then you click Safely remove Device_name to remove the device.
• You reinsert the device.

In this scenario, you may receive an error message that resembles the following:

There might be a problem with some files on this device or disc. This can happen if you remove the device or disc before all files have been written to it.

When you start a Windows Vista-based computer, you may receive a Stop 0×50 error message that resembles the following:

*** STOP: 0×00000050 (parameter1, parameter2, parameter3, parameter4)
PAGE_FAULT_IN_NONPAGED_AREA

This problem occurs on a computer that has the following hardware installed:

• A card bus adapter
• A storage device that is inserted into the card bus adapter
  The storage device might be one of the following:
  • A secure digital (SD) card
  • A compact flash (CF) card
  • An external Serial Advanced Technology Attachment (eSATA) hard disk drive that is running in SATA Advanced Host Controller Interface (AHCI) mode

When you connect an external USB storage device to a computer that is running Windows Vista, the device may not appear in the Safely Remove Hardware list in the notification area.

Consider the following scenario. You use a Windows Vista installation disc to install Windows Vista. Additionally, you have media that includes a storage device driver. This storage device driver is certified by Windows Hardware Quality Lab (WHQL). When you install Windows Vista, you use the advanced settings in the Windows Vista Setup program to specify this storage device driver.

In this scenario, the storage device driver that you specified during Windows Vista installation appears to load. However, after the installation of Windows Vista is complete, Windows Vista does not use the driver that you specified. Instead, Windows Vista uses the driver that is included in the Windows Vista installation disc.

When this problem occurs, storage device features are not available in Windows Vista for the driver that you specified during Windows Vista installation. The storage device features are not available even though Windows Vista appears to use the .inf file that corresponds to the storage device driver that you specified during Windows Vista installation.