Consider the following scenario:

• You have a computer that is running Windows Vista or Windows Server 2008.
• You start the computer from an Internet SCSI (iSCSI) device by using Challenge Handshake Authentication Protocol (CHAP) authentication on a network adapter.
• You configure a second network adapter for an iSCSI start without using CHAP authentication.

In this scenario, when you start your computer, you receive a Stop error message that resembles the following:

*** Fatal System Error: 0×0000000A (parameter 1, parameter 2, parameter 3, parameter 4)
IRQL_NOT_LESS_OR_EQUAL (a)

Notes:

• The four parameters in the Stop error message vary, depending on the configuration of the computer.
• Not all “Stop 0×0000000A” error messages are caused by this problem.

On a computer that is running Windows Server 2008 or Windows Vista, you receive the following Stop error message:

STOP: 0×00000027 (parameter1, parameter2, parameter3, parameter4)
The RDR_FILE_SYSTEM

Notes:

• The four parameters in this error message vary, depending on the configuration of the computer.
• Not all “0×00000027″ Stop errors are caused by this problem.

This problem may occur when you access shared network resources by using the Server Message Block (SMB) 2.0 protocol.

Consider the following scenario:

• Many updates are installed on a computer that is running Windows Server 2008 or Windows Vista.
• You install an update by using Windows Update.

In this scenario, the update cannot be installed, and you receive the error code 0×80070490.

If you open the following folder on this computer, over 1024 log files can be found in this folder:

%WINDIR%\system32\catroot2

Sometimes, the following event log entry is logged in the Application log:

Source: ESENT Date: <date> Event ID: 471 Task Category: Logging/Recovery Level: Error Keywords: Classic User: N/A Computer: <computer name> Description: Catalog Database (684) Catalog Database: Unable to rollback operation #252237 on database C:\Windows\system32\CatRoot2\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\catdb. Error: -614. All future database updates will be rejected.

Consider the following scenario in a network environment:

• You set up a file share on a server that is running Windows Vista or Windows Server 2008.
• You have a client computer (client 1) that is running Windows Vista or Windows Server 2008.
• You also have another client computer (client 2) that is running a Windows operating system that is earlier than Windows Vista. For example, you have a client computer that is running Windows XP or Windows Server 2003.
• You run two applications on client 1. At the same time, you run one application on client 2. All the three applications perform file I/O operations to the file share. For example, these applications may lock part of a file on the file share, edit and then unlock the file.

In this scenario, one of the applications on client 1 fails, and all the other applications stop working.

To monitor the file I/O activity of the three applications, you can use Process Monitor. When you experience this issue, you will find that an error that resembles the following is logged for the affected application:

ERROR_NOT_LOCKED (158)

Process Monitor also indicates that the error occurs in the UnlockFile function.

Consider the following scenario:

• You migrate some Group Policy objects (GPO) from a computer that is running Windows Server 2003 to a computer that is running Windows Server 2008.
• You try to use the Group Policy Management Editor or the Local Group Policy Editor to view or to modify these GPOs.

In this scenario, the operation fails and generates the following error message:

Encountered an error while parsing.
Attribute ‘attribute name’ cannot be empty. File: file name

When you try to add one or more 32-bit printer drivers on a 64-bit printer server, you receive the following error message:

The folder you specified doesn’t contain a compatible software driver for your device.

You have a computer that is running Windows Vista Service Pack 2 (SP2) or Windows Server 2008 SP2. You install a third-party Windows Filtering Platform (WFP) callout driver. In this situation, you may receive a Stop error message on a blue screen. The Stop error message resembles the following:

STOP: 0×0000000A (parameter1, parameter2, parameter3, parameter4) IRQL_NOT_LESS_OR_EQUAL

Notes:

• The four parameters in the Stop error message may vary, depending on the configuration of the computer.
• Not all “Stop 0×0000000A” error messages are caused by this problem.
• WFP callout drivers are usually used in third-party antivirus and firewall programs.

You have the Intel PROSet/Wireless WiFi connection utility installed on a computer that is running Windows Vista or Windows Server 2008. When you try to uninstall the Intel PROSet/Wireless WiFi connection utility, you receive a Stop error message on a blue screen.

Note: This issue only occurs on computers that have the Intel My WiFi technology (MWT).

While viewing the properties of a printer on a Windows 2003 Print Server from a Vista or XP client, you modify the Printer Properties several times rapidly in succession, you may see a pop-up message with the following error:

“An unexpected error occurred in the print driver. Close the current driver window and retry the operation.”

You have a computer that is running Windows Server 2008 or Windows Vista. When you unmount a volume, delete a snapshot or try to fail over a disk on which snapshots are saved to another Cluster node, you receive the following Stop error message:

0×000000D6 (parameter1, parameter2, parameter3, parameter4)
DRIVER_PAGE_FAULT_BEYOND_END_OF_ALLOCATION

Notes:

• The four parameters in this error message vary, depending on the computer’s configuration.
• Not all “0×000000D6″ Stop errors are caused by this problem.