Win XP SP2 doesn't install

Hello I was wondering what could I do to resolve my problem. I try to install
SP2 from the windows update website. Heres my svcpack.log. I am installing as
admin.

2.303: 2005/12/10 02:56:56.594 (local)
2.303:
E:\WINDOWS\SoftwareDistribution\Download\S-1-5-18\7a57263d52ef89a3cee46b33df8a0a10\update\update. exe (version 5.5.1005.0)
2.303: Service Pack started with following command line: /si
/ParentInfo:af3d2f4134839f46a3fecc3c30ae3586
2.303: Return Value From OnACPower = 1
2.303: OnACPower returned value( 0x1 ) which is Equal To 0x1
2.303: Condition succeeded for section OnACPower.Section in Line 1 of
PreRequisite
2.303: SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\Wi ndowsFeatures is
not Present
2.303: First Condition in A6Block.Section Succeeded
2.303: Condition succeeded for section A6Block.Section in Line 2 of
PreRequisite
5.968: PrepareToTrustInfFile: MySetupCopyOEMInf failed: 0x5
5.968: IsInfFileTrusted: PrepareToTrustInfFile Failed: 0x5
5.998: UnRegisterSpuninstForRecovery, failed to delete SpRecoverCmdLine
value, error 0x2
5.998: DoInstallation: Failed to unregistering spuninst.exe for recovery.
5.998: Access is denied.
5.998: Service Pack 2 installation did not complete.
5.998: Update.exe extended error code = 0x5