unable to install comodo error log

i just started a fresh new install of windows ultimate 7 64bit and heres the problem.

Problem signature:
Problem Event Name: APPCRASH
Application Name: cfw_installer.exe
Application Version:
Application Timestamp: 4ea007dc
Fault Module Name: StackHash_91d7
Fault Module Version:
Fault Module Timestamp: 00000000
Exception Code: c0000005
Exception Offset: 72f0c9f1
OS Version: 6.1.7601.
Locale ID: 1033
Additional Information 1: 91d7
Additional Information 2: 91d7ec16d5f562aa2ca04f375ae4e10b
Additional Information 3: cd96
Additional Information 4: cd9668aa0c5da67f6cb26ea2431cbb3a

could any one assist me on this issue?