yeah, you cna check the sep_inst.log file. YOu can find it in %temp% folder. Goto start ---> Run ---> type %temp%

check for the return value 3 in that . You can post the log here somebody would help you out. What is the OS version?

cheers
Pete

Ok thanks...
i will check and update...

it seems that your sep client is not properly unistalled. to uninstall it use nonav.exe reboot and reinstall the software.

U can try to reinstall winscript before installing SEP.
Go to Run-->Type %TEMP%-->SEP_inst is the log file

There are multiple reason for SEP Roll Back
 1.  Preavious Symantec  programs files exit.
 2.  Viruses teminating the installation.
 3.  No more free memory available.

Solution:

1.  Run Clean wipe tool to uninstall and delete symantec folders if it's present in the following location:
        C:\Documents and Settings\All Users\application data\Symantec

        C:\Program Files\Common Files\Symantec Shared

        C:\Program Files\Symantec

        Uninstall Live Update 

I guess your pc is infected of a virus so that the installation is prohibited, try to intall SAV version 10 then update the virus defintion then run full scan.

I guess your pc is infected of a virus so that the installation is prohibited, try to intall SAV version 10 then update the virus defintion then run full scan.

Few m/c are infected with virus. so its not allowing to install AV.
But in few m/c in spite of virus it got installed and was able to scan and detect virus.

On the machines it is not allowing to install due to virus...either map the C:\ to some computer ( which has sep n updated virus defs ) a manually scan it or run Nortonsecurityscan.exe NSS tool.

You may scan the infected PC's with the NSS Tool and then try to install SEP.

Thanks :-)

hello shp

first update your client sp3. and donwload all security and critical updates if you can.

and can you see any syptoms about virus? for example you cannot past anything, task manager is hidden and you can take a access denied message when you open regedit or task manager?
 you can try to download virus remowal tool from symantec after sp3 and all updates finished.
and by the way you have administrative rights as you well know.

if you have any problems please write again.

have a nice day.

1. Check if Event Log is Started and set as automatic  in services.msc. If this service is stopped, then,
2. Download eventlog.dll file and copy it in C:\WINDOWS\system32
3. Start the Event Log services and install SEP11

I have manage to resolve on few machines after the above steps are done.