Consider the following scenario:

• You install Windows Server 2008 or Windows Vista Service Pack 1 on a GUID partition table (GPT) disk.
• Then, you convert the GPT disk from the Basic disk type to the Dynamic disk type.
• Later, you increase or reduce the size of the boot partition on the dynamic disk by using the Disk Management snap-in.

In this scenario, the system cannot start. When you try to start the system, you receive the following error message:

Windows Boot Manager
Windows failed to start. A recent hardware or software change might be the cause. To fix the problem:
1. Insert your Windows installation disc and restart your computer.
2. Choose your language settings, and then click “Next.”
3. Click “Repair your computer.”
If you do not have this disc, contact your system administrator or computer manufacturer for assistance.
File: boot_file
Status: 0xc0000225
Info: The selected entry could not be loaded because the application is missing or corrupt.

On a computer that is running Windows Vista Service Pack 1 or Windows Server 2008, when an application tries to obtain an exclusive lock to a volume, the attempt is unsuccessful. Additionally, you may receive the following error message:

Access is denied

For example, when a backup application restores data on a volume, the application may try to obtain an exclusive lock to the volume. In this case, the restore operation is unsuccessful.

This problem typically occurs after the system runs for several hours. When this problem occurs, you may discover that the System process is holding handles to some volumes.

Note: This problem does not occur on a computer that is running Windows Vista without Service Pack 1.

Symptom 1

Consider the following scenario:

• On a computer that is running the release version of Windows Vista, a volume on the hard disk is corrupted.
• You restart the computer.

In this scenario, a black screen is displayed, and you cannot log on to the computer except in safe mode.

Symptom 2

Consider the following scenario:

• On a computer that is running Windows Vista Service Pack 1 (SP1) or Windows Server 2008, a volume on the hard disk is corrupted.
• You restart the computer.

In this scenario, the Autochk.exe application stops responding, and this prevents the restart process from continuing. If you press a key to cancel the Autochk.exe process, you can log on to the computer as expected.

Note: By default, the Autochk.exe application automatically tries to fix any hard disk corruption during startup. After Autochk.exe fixes the disk corruption, the system automatically restarts.

You cannot install or start Windows Vista when the volume of the system partition is larger than 2 terabytes (TB).

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Consider the following scenario:

• You are running a Windows Vista-based computer.
• A USB speaker is connected to the computer.
• You resume the computer from sleep or from hibernation.
• You use Windows Media Player to play music.

In this scenario, you cannot adjust the volume for the USB speaker. This is true even when you move the volume slider up or down or click the mute button in either of the following locations:

• In Windows Media Player
• In the Windows Vista sound control panel