Simple answer is no, it only comes with Windows 8. Nothing stopping you installing windows 7 youself if you already have a license though. Toshiba does not offer a downgrade option to Windows 7 for PCs purchased with this version of Windows 8. On the plus side, Windows 8.1 is a free upgrade coming end of June, which will rectify alot of the things about windows 8 that were annoying users. I would not want Windows 8, but 8.1 looks tolerable!
there is the typical trial version of office if i am not wrong, but to get the full version you have to buy a key, pretty standard for new machines. I reccomend uninstalling the trial and installing any office you have handy (or buy) i did it with office 2007 and no problems so far.
I've looked everywhere for the answer to this and Toshiba just says "Windows 8." However, if you go to the Toshiba website and configure your own ultrabook, it does say Windows 8 Premium for the Windows 8 option. I'm assuming that it is Windows 64 bits but wish they would actually say that. Assuming they go with the 64 might be totally wrong.