Yes, I've checked the svcpack.log. This down is the final part of it:
1195.906: Num Ticks for Copying files : 611516
1197.578: DoRegistryUpdates:UpdSpInstallFromInfSection Failed for
ProductInstall.GlobalRegistryChanges.Install error: 0x5
1197.578: INF_REGISTRY Failed
1197.578: DoInstallation

oRegistryUpdates failed
1209.797: Unregistration of sprecovr successful
1210.719: Accesso negato.
1215.094: Message displayed to the user: Accesso negato.
1215.094: User Input: OK
1215.094: Installazione Service Pack 3 non completata.
Scegliere 'OK' per annullare le modifiche apportate.
1217.609: Message displayed to the user: Installazione Service Pack 3 non
completata.
Scegliere 'OK' per annullare le modifiche apportate.
1217.609: User Input: OK
1217.609: Avvio processo:
C:\WINDOWS\$NtServicePackUninstall$\spuninst\spuni nst.exe /~ -u -z
1750.781: Software Update Rollback has completed with return code 0xbc2.
This rollback requires a reboot.
1750.781: Installazione Service Pack 3 non completata.
Windows XP è stato aggiornato parzialmente e potrebbe non funzionare
correttamente.
1755.687: Message displayed to the user: Installazione Service Pack 3 non
completata.
Windows XP è stato aggiornato parzialmente e potrebbe non funzionare
correttamente.
1755.687: User Input: OK
1755.687: Update.exe extended error code = 0x5
I've tried in Italy TechNet Forum, but no useful results about my problem....
Thanks MowGreen,
Diego
"MowGreen [MVP]" wrote:
> Diego,
>
> See if this MSKB article helps:
>
> Error message when you try to install Windows XP Service Pack 3: "Access
> is denied" or “Service Pack installation did not complete”
> http://support.microsoft.com/kb/949377
>
> Rather the resetting the Permissions suggest you pinpoint where the
> Access Denied error is stemming from. Have you checked the svcpack.log,
> located in WINDOWS ?
>
> MS offers free support for issues associated with the application of
> SP3: http://support.microsoft.com/oas/def...-us&prid=11273
>
> At the top right next to United States, click the Change link and set
> the country to Italy.
>
>
> MowGreen [MVP 2003-2008]
> ===============
> *-343-* FDNY
> Never Forgotten
> ===============
>
>
>
> noghere wrote:
>
> > I've got Access Denied error when I've tried to update my XP Home Edition SP2
> > to SP3 because of the installation program cannot modify the registry. The
> > installation stopped with that error after 60% progress. Do you know if the
> > Microsoft tool (subinacl.exe and reset.cmd) does work on XP Home Edition too?
> > It seems to me (reading the Microsoft instructions) that it works on XP
> > Professional only. Is that true? Somebody tried that way on XP Home Edition?
> > And what can you say to me about the secedit.exe file, present in the last
> > line of reset.cmd script but not existing in XP Home Edition? Can the
> > reset.cmd work fine without secedit.exe file too? Help me please. Thaks in
> > advance.
> >
> > Diego (Italy)
> >
> >
>