Microsoft SQL Server 2005 Express Edition Service Pack 2 Error Code: 0x2B22

Hi i tried to install the Microsoft SQL Server 2005 Express Edition Service Pack 2 but was unable to do so. I got an error message saying: Error Code: 0x2B22

I went through what the message said, but i was unable to solve the problem. Below is the summary of the problem. Please help me solve it.

Time: 05/19/2007 12:32:24.781
KB Number: KB921896
Machine: DET-NB0631262
OS Version: Microsoft Windows XP Professional Service Pack 2 (Build 2600)
Package Language: 1033 (ENU)
Package Platform: x86
Package SP Level: 2
Package Version: 3042
Command-line parameters specified:
/quiet
/allinstances
Cluster Installation: No

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Prerequisites Check & Status
SQLSupport: Passed

**********************************************************************************
Products Detected Language Level Patch Level Platform Edition
Express Database Services (SQLEXPRESS) ENU RTM 2005.090.1399.00 x86 EXPRESS
Express Database Services (SQLExpress) ENU SP2 x86 EXPRESS

**********************************************************************************
Products Disqualified & Reason
Product Reason
Express Database Services (SQLEXPRESS) Unable to start service

**********************************************************************************
Processes Locking Files
Process Name Feature Type User Name PID

**********************************************************************************
Product Installation Status
Product : Express Database Services (SQLEXPRESS)
Product Version (Previous): 1399
Product Version (Final) :
Status : Not Applied
Log File :
SQL Express Features : SQL_Data_Files,SQL_Engine,SQL_Replication,SQL_SharedTools
Error Number : 11042
Error Description : Unable to start service
-
Product : Express Database Services (SQLExpress)
Product Version (Previous):
Product Version (Final) :
Status : Not Applied
Log File :
SQL Express Features : Client_Components,Connectivity,SDK
Error Number : 0
Error Description :
-

**********************************************************************************
Summary
Unable to start service
Exit Code Returned: 11042

For me, several attempts to install "Microsoft SQL Server 2005 Express Edition Service Pack 2" via MS-update get stuck. The progress bar doesn't budge after a long lunch.