SP2 update has failed twice now with the same error 0x800703FB: System could
not allocate the required space in a registry log.
There is no remedial course of action suggested. Rollback of install appears
to have worked.
This is a Dell Inspiron 2650 laptop.
There is plenty of free disk space: Approx. 20Gb. Here are the last few
lines of c:\windows\svcpack.log. Thanks in advance for any help.
4422.759: Copied file: C:\Program Files\messenger\msgsc.dll
4423.009: Copied file: C:\Program Files\messenger\custsat.dll
4423.290: Copied file: C:\WINDOWS\INF\msmsgs.inf
4452.051: PruneCatalogsFromHotfixes:RegQueryValueEx Failed: 0x0
4452.973: PruneCatalogsFromHotfixes:RegQueryValueEx Failed: 0x0
4452.973: PruneCatalogsFromHotfixes:RegQueryValueEx Failed: 0x0
4454.955: PruneCatalogsFromHotfixes:RegQueryValueEx Failed: 0x2
4460.533: Num Ticks for Copying files : 1401425
4461.104: DoRegistryUpdates:SetupInstallFromInfSection Failed for
ProductInstall.GlobalRegistryChanges.Install error: 0x3fb
4461.104: INF_REGISTRY Failed
4461.104: DoInstallation

oRegistryUpdates failed
4489.836: Unregistration of sprecovr successful
4489.836: System could not allocate the required space in a registry log.
5346.407: Message displayed to the user: System could not allocate the
required space in a registry log.
5346.407: User Input: OK
5346.437: Service Pack 2 installation did not complete.
Select 'OK' to undo the changes that have been made.
5354.048: Message displayed to the user: Service Pack 2 installation did not
complete.
Select 'OK' to undo the changes that have been made.
5354.048: User Input: OK
5354.058: Starting process:
C:\WINDOWS\$NtServicePackUninstall$\spuninst\spuni nst.exe /~ -u -z
6393.883: Software Update Rollback has completed with return code 0xbc2.
This rollback requires a reboot.
6393.883: Service Pack 2 installation did not complete.
Windows XP has been partially updated and may not work properly.
6672.744: Message displayed to the user: Service Pack 2 installation did not
complete.
Windows XP has been partially updated and may not work properly.
6672.744: User Input: OK
6672.744: Update.exe extended error code = 0x3fb