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SEP 11 installation faild in many systems.

Created: 22 Nov 2007 • Updated: 02 Mar 2009
Hi all friends
recently we test SEP 11 in our corporate lan. and we get interrupt install and rollback in almost 10% of our PC.
i test different install package and feature and method. but result is same :(
this systems upgrad from SAV 10.1 and in install progress SAV uninstalled but SEP cant be installed.
any help or suggestion?
if this is help i put some intrrupted  installation log in these link: