Sandeep,
Per my schedule, I will probably be taking the leap to Win8 in about 2016- or maybe skipping it completely and waiting until Win9 has been out a few years- (Sorry!)
Gene
We are taking delivery from Dell this week on behalf of a client, and it will be W7-64. The other option they considered was W8, then having us *upgrade* it to W7-64. Microsoft will continue to offer side-grade back to W7, but over time the issue will be W7 drivers.
An easy way to check is lookup that model machine on their support portion of their websites and see if they list W7-64 or W7-32 drivers.
For most folks, W8 is currently the new Vista.
