Hi Babu V, I do not think your answer helps.
"All the apps will open in full screen mode it is by design and we cannot turn it off. It isthe main feature of Windows 8*, and it is also called as*modern Interface."
Modern feature for what? Smartphones, Tablets? It could be. However I this time I have installed it on my desktop and suppose to work with more one applications/screens at the time. I am not happy at all with this modern and restrictive feature.
And by the way, talking about "modern" features, Skype is getting worse too, for desktops and laptops.