Installation Error "Cannot access network location"

I already have existing Comodo Internet Security Premium installed for more than 3 months now after it automatically upgraded from my previous version. However, i encountered a problem with my Windows 7 validation which i was forced to re-install my OS again. Afterwards, when i tried re-installing the CIS, it does not complete and i get this error prompt “Cannot access network location”.
I tried already cleaning my registry and used the CIS Cleaning Tool but still the message recurs.
Please help. Thanks.

http://support.microsoft.com/kb/886549#FixItForMeAlways

fixes the issue