Did you attempt to uninstall SP3 from within normal Windows mode first ?
System restore should be used as a last resort; installing SP3 in Safe
Mode should also be a last resort.
Prefered Uninstallation Methods for SP3 in case of issues
1) Add/Remove Programs in Control Panel
2) If SP3 is not listed in ARP - show hidden files, folders, and system
files:
http://www.bleepingcomputer.com/tuto...l62.html#winxp
Navigate to
WINDOWS\$NtServicePackUninstall$\spuninst
Run spuninst.exe
3) IF #1 and #2 are not available options - How To Safely, Sanely, and
Wisely Uninstall a Failed XP Service Pack 3 Installation
http://aumha.net/viewtopic.php?f=62&t=33246
See: 2. Recovery Console
MowGreen [MVP 2003-2008]
===============
*-343-* FDNY
Never Forgotten
===============
John A wrote:
> I followed those instructions and also disabled self protection on
> Kaspersky AV.
>
> After SP3 was installed two of my computers would start normally OK,
> but neither would not start in Safe Mode - just rebooted prior to the
> login screen.
>
> With help from Microsoft support I recovered by:
> - System restore to before SP3
> - Uninstall AV (my idea)
> - Install SP3 in Safe Mode
> - Reinstall AV
>
> ... and thankfully all is well
>
> John
>
> On Mon, 02 Jun 2008 10:57:06 -0700, "MowGreen [MVP]"
> <> wrote:
>
>
>>Save yourself some *major* grief. *Please* read this prior to applying
>>XP SP3:
>>
>>Steps to take before you install Windows XP Service Pack 3
>>http://support.microsoft.com/kb/950717
>>
>>Of *** special note ****, read the " If you are running antivirus
>>software " heading.
>>
>>About half way through the KB article there are some *invaluable* links
>>to other KB articles for possible issues that may arise during the
>>application of SP3:
>> " Troubleshooting Windows XP SP3 installation "
>>
>>
>>MowGreen [MVP 2003-2008]
>>===============
>> *-343-* FDNY
>>Never Forgotten
>>===============