You use a computer-to-computer (ad hoc) network connection in Windows Vista. When you restart Windows, the ad hoc network connection is not automatically reconnected.

Note: This issue may also occur when one of the following conditions is true:

• You forcibly close an ad hoc network connection by shutting down a wireless network.
• You disable and then enable the network adapters.

Consider the following scenario:

• You have a computer that is running Windows Server 2008 or Windows Vista.
• Multicast forwarding is enabled.

In this scenario, the system may restart repeatedly with different Stop error codes, such as 0×0000001E or 0×000000D1. Or, the system may stop responding. This problem does not occur if you disable multicast forwarding.

A computer that is running an x64-based version of Windows Server 2003, of Windows Vista, or of Windows Server 2008 randomly restarts and then generates a Stop error. The Stop error code may be 0×0000001E, 0×000000D1, or another Stop error code.

This problem occurs after you install update 932596 on the computer.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

932596 Microsoft Security Advisory: Update to improve Kernel Patch Protection

Consider the following scenario:

• An ADSL router is connected to a Windows-based computer.

Note: An ADSL router is also known as a DSL modem.

• You install Windows XP Service Pack 3 (SP3) or Windows Vista on the computer.

In this scenario, the ADSL router may restart occasionally.

Consider the following scenario:

• You configure a computer to use the Windows Aero color scheme feature.
• You capture a screen shot by pressing PRINT SCREEN on the keyboard.
• You move or resize the target window while you capture the screen shot.

In this scenario, the screen freezes, and you have to restart the computer.

This problem occurs when the computer is running one of the following:

• Windows Vista that has hotfix 937229 installed
• Windows Vista SP1
• Windows Server 2008

Notes

• When you press PRINT SCREEN to capture a screen shot, the BitBlt function or the StretchBlt function is called.
• If you use an application that calls the BitBlt function or the StretchBlt function, this problem may also occur.

On a Windows Vista-based computer that has a 1280 by 800 screen resolution, you reset the screen font size to the Larger scale (120 DPI) setting. However, when you restart the computer, you see that the logon screen is now clipped. Therefore, you have to scroll down the logon screen to enter your password.

Note: This issue does not occur when you use the Default scale (96 DPI) setting.

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.

When you restart a Windows Vista-based computer, some devices that are based on the ATA miniport driver may not work correctly. For example, if a device driver intends to write data back to a device when the computer restarts, the data may not be written back as expected.

Consider the following scenario:

• You have a computer that is running Windows Vista Service Pack 1 (SP1) or Windows Server 2008.
• The computer has multiple processors installed.
• You restart the computer.

In this scenario, the computer may stop responding at the Windows Start screen.

Consider the following scenario:

• On a computer that is running Windows Server 2008 or Windows Vista, you log on immediately after you have restarted the computer.
• Windows Explorer tries to display the desktop before the Workstation service has started.
• Folder redirection is enabled on the computer.

In this scenario, you may experience one of the following symptoms.

Symptom 1

When you try to access redirected folders, you receive the following error message:

\\servername\Username\sharename is currently unavailable.

Symptom 2

The Documents, Pictures, Music, and Desktop folders are not visible.