I've been working on this particular Vista SP2 PC for 2 days to try and get EndPoint to reinstall and cannot.  It rolls back every time.

LiveUpdate was having an issue so I figured I'd uninstall and reinstall a later build.  The uninstall seemed to go cleanly. 

I've tried:
 - manually deleting all Symantec folders I could find (c:\program files\symantec, c:\program files\common files\symantec, c:\programdata\symantec, c:\users\owner\appdata\local\symantec)
 - running a CleanWipe utility I had from last year sometime
 - creating a brand new user and trying the install from there
 - manually installing liveupdate first, then trying endpoint
 - running various anti-virus/spyware scans on the PC, which seem to come up clean
 - installing AVG which installs fine and scans the PC and finds it clean

Here is the log I get:

http://www.techav.com/misc/SEP_INST.TXT
or a zip file here:
http://www.techav.com/misc/SEP_INST.zip

Here is the end of the log if it helps:

Property(S): MSIRemoveWFPAppException_RB.17E5C180_F281_4425_9348_3E891E7F8D1F = SMC Service;C:\Program Files\Symantec\Symantec Endpoint Protection\Smc.exe;SNAC Service;C:\Program Files\Symantec\Symantec Endpoint Protection\SNAC.EXE;Symantec Email;C:\Program Files\Common Files\Symantec Shared\ccApp.exe;
Property(S): ProductToBeRegistered = 1
Property(S): MSIRemoveWFPAppException.17E5C180_F281_4425_9348_3E891E7F8D1F = SMC Service;C:\Program Files\Symantec\Symantec Endpoint Protection\Smc.exe;SNAC Service;C:\Program Files\Symantec\Symantec Endpoint Protection\SNAC.EXE;Symantec Email;C:\Program Files\Common Files\Symantec Shared\ccApp.exe;
Property(S): MSIAddWFPAppException_RB.17E5C180_F281_4425_9348_3E891E7F8D1F = SMC Service;C:\Program Files\Symantec\Symantec Endpoint Protection\Smc.exe;SNAC Service;C:\Program Files\Symantec\Symantec Endpoint Protection\SNAC.EXE;Symantec Email;C:\Program Files\Common Files\Symantec Shared\ccApp.exe;
Property(S): MSIAddWFPAppException.17E5C180_F281_4425_9348_3E891E7F8D1F = SMC Service;C:\Program Files\Symantec\Symantec Endpoint Protection\Smc.exe;SNAC Service;C:\Program Files\Symantec\Symantec Endpoint Protection\SNAC.EXE;Symantec Email;C:\Program Files\Common Files\Symantec Shared\ccApp.exe;
MSI (s) (28:8C) [17:12:58:594]: MainEngineThread is returning 1603
MSI (s) (28:8C) [17:12:58:594]: User policy value 'DisableRollback' is 0
MSI (s) (28:8C) [17:12:58:594]: Machine policy value 'DisableRollback' is 0
MSI (s) (28:8C) [17:12:58:594]: Incrementing counter to disable shutdown. Counter after increment: 0
MSI (s) (28:8C) [17:12:58:594]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts 3: 2
MSI (s) (28:8C) [17:12:58:594]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts 3: 2
MSI (s) (28:8C) [17:12:58:594]: Decrementing counter to disable shutdown. If counter >= 0, shutdown will be denied.  Counter after decrement: -1
MSI (s) (28:8C) [17:12:58:594]: Restoring environment variables
MSI (s) (28:8C) [17:12:58:594]: Destroying RemoteAPI object.
MSI (s) (28:0C) [17:12:58:594]: Custom Action Manager thread ending.
MSI (c) (AC:1C) [17:12:58:594]: Back from server. Return value: 1603
MSI (c) (AC:1C) [17:12:58:594]: Decrementing counter to disable shutdown. If counter >= 0, shutdown will be denied.  Counter after decrement: -1
MSI (c) (AC:1C) [17:12:58:594]: PROPERTY CHANGE: Deleting SECONDSEQUENCE property. Its current value is '1'.
Action ended 17:12:58: ExecuteAction. Return value 3.
MSI (c) (AC:1C) [17:12:58:594]: Doing action: SetupCompleteError
Action 17:12:58: SetupCompleteError.
Action start 17:12:58: SetupCompleteError.
Action 17:12:58: SetupCompleteError. Dialog created

I'm pulling my hair out on this, so any help would be GREATLY appreciated.

Thanks!!!