Computer Freezes When Installing New Bitdefender Internet Security

Did all of them. Still same freezing problem while scanning 25% or even 60%. no luck yet. Why do a internet security like this reputation Freezes while installing in a system? Feel so hopeless as I bought 3 License for 3 PC. Internet Security 2013 did the same freezing problem and that's why i was hoping to use this new one. Still the same problem. By the way... I also disable windows defender before i tried installing it.

I have downloaded Norton 360 trial edition for testing purpose and Just have installed it. Norton installed in my system without any problem and smoothly in 5 min. So I think there is no issue with my System that can be a problem for Bitdefender to install in it unless it has its installation problem. By the way, When I was running Windows 7 Home Premium in my Notebook Last year i tried installing BIS 2013 and it was having same freezing issue. Then I open msconfig in windows 7 and selected Diagnostic Startup. After restating my notebook i was able to install BIS 2013 in my windows 7 home premium. But last December 2012 I bought Windows 8 pro and i installed it in my notebook as a clean OS. I wasn't able to install BIS 2013 in it because of same freezing problem. I did select Diagnostic Startup in windows 8 but this time in windows 8 it dont work like before in Windows 7. It was always freezes while installing. So I was using Windows built in Anti Virus Windows Defender from that time. But as I am taking some Internet shopping or Banking facilities I was thinking that i should use a good Internet Security. So my first choice was New BIS as I already have 3 licenses for my 3 PC and which almost have 90 days left i think in expiring. But I am very much sad now because of BIS team didnt took proper step to make there software better for every PC. They should first take proper survey by installing it in as much as PC they get. Cause a internet security should be as flexible as like when we want to install it in any system now days it should. This is my advices for the betterment of Bitdefender so that we all old customers and also new customers get it attractive and easy to install for our computer.