SP2 Update, error 80070005, several 0x5 errors

Attrempting SP2 Update, both auto and manual, on Toshiba Laptop. After
several attemps letting autoupdate try, and fail, tried a manual install with
clean-boot (Winini and Startupini disabled, all non-microsoft services
disabled)
Logging in as adminstrator on XP home, permissions checked and allowed,
log reads:
3.866:
C:\WINDOWS\SoftwareDistribution\Download\S-1-5-18\8b5e9cdb91dddbb342695fbdc36fe0e4\update\update. exe (version 5.5.1005.0)
3.906: Service Pack started with following command line: /si
/ParentInfo:0c13ff3730c1394fb1008966f5afcf73
3.906: GetKernelType: GetInternalFilename failed
4.036: Return Value From OnACPower = 1
4.036: OnACPower returned value( 0x1 ) which is Equal To 0x1
4.036: Condition succeeded for section OnACPower.Section in Line 1 of
PreRequisite
4.036: SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\Wi ndowsFeatures is
not Present
4.036: First Condition in A6Block.Section Succeeded
4.036: Condition succeeded for section A6Block.Section in Line 2 of
PreRequisite
11.477: PrepareToTrustInfFile: MySetupCopyOEMInf failed: 0x5
11.477: IsInfFileTrusted: PrepareToTrustInfFile Failed: 0x5
11.567: UnRegisterSpuninstForRecovery, failed to delete SpRecoverCmdLine
value, error 0x2
11.567: DoInstallation: Failed to unregistering spuninst.exe for recovery.
11.567: Access is denied.
11.567: Service Pack 2 installation did not complete.
11.567: Update.exe extended error code = 0x5

Opinions, anyone?